diff --git a/.changeset/quiet-users-hide.md b/.changeset/quiet-users-hide.md
new file mode 100644
index 0000000000000..6254787450ae8
--- /dev/null
+++ b/.changeset/quiet-users-hide.md
@@ -0,0 +1,5 @@
+---
+'@rocket.chat/meteor': patch
+---
+
+Fixes user mute and unmute system messages remaining visible in rooms configured to hide them.
diff --git a/apps/meteor/client/views/room/MessageList/hooks/useMessages.ts b/apps/meteor/client/views/room/MessageList/hooks/useMessages.ts
index 5a5ba8a0c431e..f717db256d255 100644
--- a/apps/meteor/client/views/room/MessageList/hooks/useMessages.ts
+++ b/apps/meteor/client/views/room/MessageList/hooks/useMessages.ts
@@ -12,7 +12,13 @@ const mergeHideSysMessages = (
 	sysMesArray1: Array<MessageTypesValues>,
 	sysMesArray2: Array<MessageTypesValues>,
 ): Array<MessageTypesValues> => {
-	return Array.from(new Set([...sysMesArray1, ...sysMesArray2]));
+	return Array.from(
+		new Set(
+			[...sysMesArray1, ...sysMesArray2].flatMap((messageType): MessageTypesValues[] =>
+				messageType === 'mute_unmute' ? ['user-muted', 'user-unmuted'] : [messageType],
+			),
+		),
+	);
 };
 
 export const useMessages = ({ rid }: { rid: IRoom['_id'] }): IMessage[] => {
diff --git a/apps/meteor/server/lib/messaging/getHiddenSystemMessages.ts b/apps/meteor/server/lib/messaging/getHiddenSystemMessages.ts
index 08f52620e0805..d29ab6ba30951 100644
--- a/apps/meteor/server/lib/messaging/getHiddenSystemMessages.ts
+++ b/apps/meteor/server/lib/messaging/getHiddenSystemMessages.ts
@@ -1,10 +1,10 @@
 import type { MessageTypesValues, IRoom } from '@rocket.chat/core-typings';
 
 export const getHiddenSystemMessages = (room: IRoom, hiddenSystemMessages: MessageTypesValues[]): MessageTypesValues[] => {
-	const hiddenTypes = hiddenSystemMessages.reduce((array, value): MessageTypesValues[] => {
+	const hiddenTypes = Array.isArray(room?.sysMes) ? room.sysMes : hiddenSystemMessages;
+
+	return hiddenTypes.reduce((array, value): MessageTypesValues[] => {
 		const newValue: MessageTypesValues[] = value === 'mute_unmute' ? ['user-muted', 'user-unmuted'] : [value];
 		return [...array, ...newValue];
 	}, [] as MessageTypesValues[]);
-
-	return Array.isArray(room?.sysMes) ? room.sysMes : hiddenTypes;
 };
diff --git a/apps/meteor/tests/unit/server/lib/messaging/getHiddenSystemMessage.spec.ts b/apps/meteor/tests/unit/server/lib/messaging/getHiddenSystemMessage.spec.ts
index 320d519105483..b3ccde2f01c0c 100644
--- a/apps/meteor/tests/unit/server/lib/messaging/getHiddenSystemMessage.spec.ts
+++ b/apps/meteor/tests/unit/server/lib/messaging/getHiddenSystemMessage.spec.ts
@@ -7,7 +7,7 @@ describe('getHiddenSystemMessages', () => {
 	it('should return room.sysMes if it is an array', async () => {
 		const room: IRoom = {
 			_id: 'roomId',
-			sysMes: ['mute_unmute', 'room_changed_description'] as MessageTypesValues[],
+			sysMes: ['room-archived', 'room_changed_description'] as MessageTypesValues[],
 			t: 'c',
 			msgs: 0,
 			u: {} as IUser,
@@ -20,6 +20,22 @@ describe('getHiddenSystemMessages', () => {
 		expect(result).to.deep.equal(room.sysMes);
 	});
 
+	it('should normalize grouped mute/unmute messages from room.sysMes', async () => {
+		const room: IRoom = {
+			_id: 'roomId',
+			sysMes: ['mute_unmute', 'room_changed_description'] as MessageTypesValues[],
+			t: 'c',
+			msgs: 0,
+			u: {} as IUser,
+			usersCount: 0,
+			_updatedAt: new Date(),
+		};
+
+		const result = getHiddenSystemMessages(room, []);
+
+		expect(result).to.deep.equal(['user-muted', 'user-unmuted', 'room_changed_description']);
+	});
+
 	it('should return cached hidden system messages if room.sysMes is not an array', async () => {
 		const cachedHiddenSystemMessage: MessageTypesValues[] = ['mute_unmute', 'room_changed_description'];
 
@@ -75,7 +91,7 @@ describe('getHiddenSystemMessages', () => {
 
 		const room: IRoom = {
 			_id: 'roomId',
-			sysMes: ['mute_unmute', 'room_changed_description'] as MessageTypesValues[],
+			sysMes: ['room-unarchived', 'room_changed_description'] as MessageTypesValues[],
 			t: 'c',
 			msgs: 0,
 			u: {} as IUser,
@@ -85,6 +101,6 @@ describe('getHiddenSystemMessages', () => {
 
 		const result = getHiddenSystemMessages(room, cachedHiddenSystemMessage);
 
-		expect(result).to.deep.equal(['mute_unmute', 'room_changed_description']);
+		expect(result).to.deep.equal(room.sysMes);
 	});
 });