diff --git a/lib/extension/groups.js b/lib/extension/groups.js
index 4cec86e40..2b9990b14 100644
--- a/lib/extension/groups.js
+++ b/lib/extension/groups.js
@@ -102,7 +102,7 @@ class Groups extends Extension {
             const resolvedEntity = this.zigbee.resolveEntity(`${data.ID}${endpointName ? `/${endpointName}` : ''}`);
             const zigbeeGroups = this.zigbee.getGroups().filter((zigbeeGroup) => {
                 const settingsGroup = settings.getGroup(zigbeeGroup.groupID);
-                return settingsGroup && settingsGroup.optimistic;
+                return settingsGroup && (!settingsGroup.hasOwnProperty('optimistic') || settingsGroup.optimistic);
             });
 
             if (resolvedEntity.type === 'device') {
diff --git a/lib/extension/publish.js b/lib/extension/publish.js
index 254bc405d..512d0deee 100644
--- a/lib/extension/publish.js
+++ b/lib/extension/publish.js
@@ -224,10 +224,8 @@ class EntityPublish extends Extension {
                 if (topic.type === 'set' && converter.convertSet) {
                     logger.debug(`Publishing '${topic.type}' '${key}' to '${resolvedEntity.name}'`);
                     const result = await converter.convertSet(actualTarget, key, value, meta);
-                    const isGroup = actualTarget.constructor.name == 'Group';
-                    // Optimistic behaviour of groups and devices is different.
-                    const publishOptimistic = isGroup || (!options.hasOwnProperty('optimistic') || options.optimistic);
-                    if (result && result.state && publishOptimistic) {
+                    const optimistic = !options.hasOwnProperty('optimistic') || options.optimistic;
+                    if (result && result.state && optimistic) {
                         const msg = result.state;
 
                         if (endpointName) {
@@ -242,7 +240,7 @@ class EntityPublish extends Extension {
                         this.publishEntityState(resolvedEntity.settings.ID, msg);
                     }
 
-                    if (result && result.membersState && publishOptimistic) {
+                    if (result && result.membersState && optimistic) {
                         for (const [ieeeAddr, state] of Object.entries(result.membersState)) {
                             this.publishEntityState(ieeeAddr, state);
                         }
diff --git a/lib/util/settings.js b/lib/util/settings.js
index eb3f27a47..107863648 100644
--- a/lib/util/settings.js
+++ b/lib/util/settings.js
@@ -426,12 +426,12 @@ function getGroup(IDorName) {
     const settings = getWithDefaults();
     const byID = settings.groups[IDorName];
     if (byID) {
-        return {optimistic: true, devices: [], ...byID, ID: Number(IDorName), friendlyName: byID.friendly_name};
+        return {devices: [], ...byID, ID: Number(IDorName), friendlyName: byID.friendly_name};
     }
 
     for (const [ID, group] of Object.entries(settings.groups)) {
         if (group.friendly_name === IDorName) {
-            return {optimistic: true, devices: [], ...group, ID: Number(ID), friendlyName: group.friendly_name};
+            return {devices: [], ...group, ID: Number(ID), friendlyName: group.friendly_name};
         }
     }
 
@@ -441,7 +441,7 @@ function getGroup(IDorName) {
 function getGroups() {
     const settings = getWithDefaults();
     return Object.entries(settings.groups).map(([ID, group]) => {
-        return {optimistic: true, devices: [], ...group, ID: Number(ID), friendlyName: group.friendly_name};
+        return {devices: [], ...group, ID: Number(ID), friendlyName: group.friendly_name};
     });
 }
 
diff --git a/test/bridge.test.js b/test/bridge.test.js
index 547000ba9..ab29fe095 100644
--- a/test/bridge.test.js
+++ b/test/bridge.test.js
@@ -513,7 +513,7 @@ describe('Bridge', () => {
         MQTT.events.message('zigbee2mqtt/bridge/request/group/rename', stringify({from: 'group_1', to: 'group_new_name'}));
         await flushPromises();
         expect(settings.getGroup('group_1')).toBeNull();
-        expect(settings.getGroup('group_new_name')).toStrictEqual({"ID": 1, "devices": [], "friendly_name": "group_new_name", "friendlyName": "group_new_name", "optimistic": true, "retain": false});
+        expect(settings.getGroup('group_new_name')).toStrictEqual({"ID": 1, "devices": [], "friendly_name": "group_new_name", "friendlyName": "group_new_name", "retain": false});
         expect(MQTT.publish).toHaveBeenCalledWith('zigbee2mqtt/bridge/groups', expect.any(String), expect.any(Object), expect.any(Function));
         expect(MQTT.publish).toHaveBeenCalledWith(
             'zigbee2mqtt/bridge/response/group/rename',
@@ -610,13 +610,13 @@ describe('Bridge', () => {
 
     it('Should allow change group options', async () => {
         MQTT.publish.mockClear();
-        expect(settings.getGroup('group_1')).toStrictEqual({"ID": 1, "devices": [], "friendly_name": "group_1", "retain": false, "friendlyName": "group_1", "optimistic": true});
+        expect(settings.getGroup('group_1')).toStrictEqual({"ID": 1, "devices": [], "friendly_name": "group_1", "retain": false, "friendlyName": "group_1"});
         MQTT.events.message('zigbee2mqtt/bridge/request/group/options', stringify({options: {retain: true, transition: 1}, id: 'group_1'}));
         await flushPromises();
-        expect(settings.getGroup('group_1')).toStrictEqual({"ID": 1, "devices": [], "friendly_name": "group_1", "retain": true, "friendlyName": "group_1", "optimistic": true, "transition": 1});
+        expect(settings.getGroup('group_1')).toStrictEqual({"ID": 1, "devices": [], "friendly_name": "group_1", "retain": true, "friendlyName": "group_1", "transition": 1});
         expect(MQTT.publish).toHaveBeenCalledWith(
             'zigbee2mqtt/bridge/response/group/options',
-            stringify({"data":{"from":{"optimistic": true,"retain": false},"to":{"optimistic": true,"retain": true,"transition":1}, "id":"group_1"},"status":"ok"}),
+            stringify({"data":{"from":{"retain": false},"to":{"retain": true,"transition":1}, "id":"group_1"},"status":"ok"}),
             {retain: false, qos: 0}, expect.any(Function)
         );
     });
@@ -636,7 +636,7 @@ describe('Bridge', () => {
         MQTT.publish.mockClear();
         MQTT.events.message('zigbee2mqtt/bridge/request/group/add', 'group_193');
         await flushPromises();
-        expect(settings.getGroup('group_193')).toStrictEqual({"ID": 3, "devices": [], "friendly_name": "group_193", "friendlyName": "group_193", "optimistic": true});
+        expect(settings.getGroup('group_193')).toStrictEqual({"ID": 3, "devices": [], "friendly_name": "group_193", "friendlyName": "group_193"});
         expect(MQTT.publish).toHaveBeenCalledWith('zigbee2mqtt/bridge/groups', expect.any(String), expect.any(Object), expect.any(Function));
         expect(MQTT.publish).toHaveBeenCalledWith(
             'zigbee2mqtt/bridge/response/group/add',
@@ -649,7 +649,7 @@ describe('Bridge', () => {
         MQTT.publish.mockClear();
         MQTT.events.message('zigbee2mqtt/bridge/request/group/add', stringify({friendly_name: "group_193", id: 9}));
         await flushPromises();
-        expect(settings.getGroup('group_193')).toStrictEqual({"ID": 9, "devices": [], "friendly_name": "group_193", "friendlyName": "group_193", "optimistic": true});
+        expect(settings.getGroup('group_193')).toStrictEqual({"ID": 9, "devices": [], "friendly_name": "group_193", "friendlyName": "group_193"});
         expect(MQTT.publish).toHaveBeenCalledWith('zigbee2mqtt/bridge/groups', expect.any(String), expect.any(Object), expect.any(Function));
         expect(MQTT.publish).toHaveBeenCalledWith(
             'zigbee2mqtt/bridge/response/group/add',
diff --git a/test/legacy/bridgeLegacy.test.js b/test/legacy/bridgeLegacy.test.js
index c33df6d85..b87ec2750 100644
--- a/test/legacy/bridgeLegacy.test.js
+++ b/test/legacy/bridgeLegacy.test.js
@@ -188,7 +188,7 @@ describe('Bridge legacy', () => {
         await flushPromises();
         expect(MQTT.publish.mock.calls[0][0]).toStrictEqual('zigbee2mqtt/bridge/log');
         const payload = JSON.parse(MQTT.publish.mock.calls[0][1]);
-        expect(payload).toStrictEqual({"message":[{"ID":1,"devices":[],"friendly_name":"group_1","optimistic":true,"retain":false},{"ID":2,"devices":[],"friendly_name":"group_2","optimistic":true,"retain":false},{"ID":11,"devices":["bulb_2"],"friendly_name":"group_with_tradfri","optimistic":true,"retain":false},{"ID":12,"devices":["TS0601_thermostat"],"friendly_name":"thermostat_group","optimistic":true,"retain":false},{"ID":14,"devices":["power_plug"],"friendly_name":"switch_group","optimistic":true,"retain":false},{"ID":21,"devices":["GLEDOPTO_2ID/cct"],"friendly_name":"gledopto_group","optimistic":true},{"ID":15071,"devices":["bulb_color_2","bulb_2"],"friendly_name":"group_tradfri_remote","optimistic":true,"retain":false}],"type":"groups"});
+        expect(payload).toStrictEqual({"message":[{"ID":1,"devices":[],"friendly_name":"group_1","retain":false},{"ID":2,"devices":[],"friendly_name":"group_2","retain":false},{"ID":11,"devices":["bulb_2"],"friendly_name":"group_with_tradfri","retain":false},{"ID":12,"devices":["TS0601_thermostat"],"friendly_name":"thermostat_group","retain":false},{"ID":14,"devices":["power_plug"],"friendly_name":"switch_group","retain":false},{"ID":21,"devices":["GLEDOPTO_2ID/cct"],"friendly_name":"gledopto_group"},{"ID":15071,"devices":["bulb_color_2","bulb_2"],"friendly_name":"group_tradfri_remote","retain":false}],"type":"groups"});
     });
 
     it('Should allow rename devices', async () => {
@@ -221,10 +221,10 @@ describe('Bridge legacy', () => {
 
     it('Should allow rename groups', async () => {
         MQTT.publish.mockClear();
-        expect(settings.getGroup(1)).toStrictEqual({"ID": 1, devices: [], friendlyName: "group_1", "friendly_name": "group_1", optimistic: true, retain: false});
+        expect(settings.getGroup(1)).toStrictEqual({"ID": 1, devices: [], friendlyName: "group_1", "friendly_name": "group_1", retain: false});
         MQTT.events.message('zigbee2mqtt/bridge/config/rename', stringify({old: 'group_1', new: 'group_1_renamed'}));
         await flushPromises();
-        expect(settings.getGroup(1)).toStrictEqual({"ID": 1, devices: [], friendlyName: "group_1_renamed", "friendly_name": "group_1_renamed", optimistic: true, retain: false});
+        expect(settings.getGroup(1)).toStrictEqual({"ID": 1, devices: [], friendlyName: "group_1_renamed", "friendly_name": "group_1_renamed", retain: false});
         expect(MQTT.publish).toHaveBeenCalledWith(
             'zigbee2mqtt/bridge/log',
             stringify({type: 'group_renamed', message: {from: 'group_1', to: 'group_1_renamed'}}),
@@ -270,7 +270,7 @@ describe('Bridge legacy', () => {
             {qos: 0, retain: false},
             expect.any(Function)
         );
-        expect(settings.getGroup('new_group')).toStrictEqual({"ID": 3, "friendlyName": "new_group", "friendly_name": "new_group", devices: [], optimistic: true});
+        expect(settings.getGroup('new_group')).toStrictEqual({"ID": 3, "friendlyName": "new_group", "friendly_name": "new_group", devices: []});
         expect(zigbeeHerdsman.createGroup).toHaveBeenCalledTimes(1);
         expect(zigbeeHerdsman.createGroup).toHaveBeenCalledWith(3);
     });
@@ -279,7 +279,7 @@ describe('Bridge legacy', () => {
         zigbeeHerdsman.createGroup.mockClear();
         MQTT.events.message('zigbee2mqtt/bridge/config/add_group', '{"friendly_name": "new_group"}');
         await flushPromises();
-        expect(settings.getGroup('new_group')).toStrictEqual({"ID": 3, "friendlyName": "new_group", "friendly_name": "new_group", devices: [], optimistic: true});
+        expect(settings.getGroup('new_group')).toStrictEqual({"ID": 3, "friendlyName": "new_group", "friendly_name": "new_group", devices: []});
         expect(zigbeeHerdsman.createGroup).toHaveBeenCalledTimes(1);
         expect(zigbeeHerdsman.createGroup).toHaveBeenCalledWith(3);
         expect(MQTT.publish).toHaveBeenCalledWith(
@@ -294,7 +294,7 @@ describe('Bridge legacy', () => {
         zigbeeHerdsman.createGroup.mockClear();
         MQTT.events.message('zigbee2mqtt/bridge/config/add_group', '{"friendly_name": "new_group", "id": 42}');
         await flushPromises();
-        expect(settings.getGroup('new_group')).toStrictEqual({"ID": 42, "friendlyName": "new_group", "friendly_name": "new_group", devices: [], optimistic: true});
+        expect(settings.getGroup('new_group')).toStrictEqual({"ID": 42, "friendlyName": "new_group", "friendly_name": "new_group", devices: []});
         expect(zigbeeHerdsman.createGroup).toHaveBeenCalledTimes(1);
         expect(zigbeeHerdsman.createGroup).toHaveBeenCalledWith(42);
         expect(MQTT.publish).toHaveBeenCalledWith(
@@ -309,7 +309,7 @@ describe('Bridge legacy', () => {
         zigbeeHerdsman.createGroup.mockClear();
         MQTT.events.message('zigbee2mqtt/bridge/config/add_group', '{"id": 42}');
         await flushPromises();
-        expect(settings.getGroup('group_42')).toStrictEqual({"ID": 42, "friendlyName": "group_42", "friendly_name": "group_42", devices: [], optimistic: true});
+        expect(settings.getGroup('group_42')).toStrictEqual({"ID": 42, "friendlyName": "group_42", "friendly_name": "group_42", devices: []});
         expect(zigbeeHerdsman.createGroup).toHaveBeenCalledTimes(1);
         expect(zigbeeHerdsman.createGroup).toHaveBeenCalledWith(42)
     });
diff --git a/test/publish.test.js b/test/publish.test.js
index 91b447760..716d3e6ec 100644
--- a/test/publish.test.js
+++ b/test/publish.test.js
@@ -422,6 +422,13 @@ describe('Publish', () => {
         expect(MQTT.publish).toHaveBeenCalledTimes(0);
     });
 
+    it('Shouldnt publish new state when optimistic = false for group', async () => {
+        settings.set(['groups', '2', 'optimistic'], false);
+        await MQTT.events.message('zigbee2mqtt/group_2/set', stringify({brightness: '200'}));
+        await flushPromises();
+        expect(MQTT.publish).toHaveBeenCalledTimes(0);
+    });
+
     it('Should handle non-valid topics', async () => {
         await MQTT.events.message('zigbee2mqtt1/bulb_color/set', stringify({state: 'ON'}));
         await flushPromises();
diff --git a/test/settings.test.js b/test/settings.test.js
index 8b131303d..3ca026017 100644
--- a/test/settings.test.js
+++ b/test/settings.test.js
@@ -352,7 +352,6 @@ describe('Settings', () => {
             friendlyName: '123',
             friendly_name: '123',
             devices: [],
-            optimistic: true,
         };
 
         expect(group).toStrictEqual(expected);
@@ -378,7 +377,6 @@ describe('Settings', () => {
             friendlyName: '123',
             friendly_name: '123',
             devices: [],
-            optimistic: true,
         };
 
         expect(group).toStrictEqual(expected);
@@ -420,7 +418,6 @@ describe('Settings', () => {
 
         const group = settings.getGroup('1');
         const expectedGroup = {
-            optimistic: true,
             ID: 1,
             friendlyName: '123',
             friendly_name: '123',