diff --git a/src/components/views/spaces/threads-activity-centre/useUnreadThreadRooms.ts b/src/components/views/spaces/threads-activity-centre/useUnreadThreadRooms.ts
index addaeb97b8..115b208560 100644
--- a/src/components/views/spaces/threads-activity-centre/useUnreadThreadRooms.ts
+++ b/src/components/views/spaces/threads-activity-centre/useUnreadThreadRooms.ts
@@ -96,6 +96,12 @@ function computeUnreadThreadRooms(mxClient: MatrixClient, msc3946ProcessDynamicP
         if (VisibilityProvider.instance.isRoomVisible(room) && doesRoomHaveUnreadThreads(room)) {
             // Get the greatest notification level of all rooms
             const notificationLevel = getThreadNotificationLevel(room);
+
+            // If the room has an activity notification or less, we ignore it
+            if (notificationLevel <= NotificationLevel.Activity) {
+                continue;
+            }
+
             if (notificationLevel > greatestNotificationLevel) {
                 greatestNotificationLevel = notificationLevel;
             }
diff --git a/test/components/views/spaces/ThreadsActivityCentre-test.tsx b/test/components/views/spaces/ThreadsActivityCentre-test.tsx
index 4ae890638f..8155773e6d 100644
--- a/test/components/views/spaces/ThreadsActivityCentre-test.tsx
+++ b/test/components/views/spaces/ThreadsActivityCentre-test.tsx
@@ -111,17 +111,13 @@ describe("ThreadsActivityCentre", () => {
         expect(getTACMenu()).toBeInTheDocument();
     });
 
-    it("should render a room with a activity in the TAC", async () => {
+    it("should not render a room with a activity in the TAC", async () => {
         cli.getVisibleRooms = jest.fn().mockReturnValue([roomWithActivity]);
         renderTAC();
         await userEvent.click(getTACButton());
 
-        const tacRows = screen.getAllByRole("menuitem");
-        expect(tacRows.length).toEqual(1);
-
-        getByText(tacRows[0], "Just activity");
-        expect(tacRows[0].getElementsByClassName("mx_NotificationBadge").length).toEqual(1);
-        expect(tacRows[0].getElementsByClassName("mx_NotificationBadge_level_notification").length).toEqual(0);
+        // We should not render the room with activity
+        expect(() => screen.getAllByRole("menuitem")).toThrow();
     });
 
     it("should render a room with a regular notification in the TAC", async () => {
diff --git a/test/components/views/spaces/__snapshots__/ThreadsActivityCentre-test.tsx.snap b/test/components/views/spaces/__snapshots__/ThreadsActivityCentre-test.tsx.snap
index c5e29e38ce..d82c7df6d0 100644
--- a/test/components/views/spaces/__snapshots__/ThreadsActivityCentre-test.tsx.snap
+++ b/test/components/views/spaces/__snapshots__/ThreadsActivityCentre-test.tsx.snap
@@ -2,7 +2,7 @@
 
 exports[`ThreadsActivityCentre renders notifications matching the snapshot 1`] = `
 <div
-  aria-labelledby="radix-13"
+  aria-labelledby="radix-12"
   aria-orientation="vertical"
   class="_menu_1x5h1_17"
   data-align="end"
@@ -11,7 +11,7 @@ exports[`ThreadsActivityCentre renders notifications matching the snapshot 1`] =
   data-side="right"
   data-state="open"
   dir="ltr"
-  id="radix-14"
+  id="radix-13"
   role="menu"
   style="outline: none; --radix-dropdown-menu-content-transform-origin: var(--radix-popper-transform-origin); --radix-dropdown-menu-content-available-width: var(--radix-popper-available-width); --radix-dropdown-menu-content-available-height: var(--radix-popper-available-height); --radix-dropdown-menu-trigger-width: var(--radix-popper-anchor-width); --radix-dropdown-menu-trigger-height: var(--radix-popper-anchor-height); pointer-events: auto;"
   tabindex="-1"
@@ -121,61 +121,13 @@ exports[`ThreadsActivityCentre renders notifications matching the snapshot 1`] =
         />
       </div>
     </button>
-    <button
-      class="mx_ThreadsActivityRow _item_1bcsk_17 _interactive_1bcsk_36"
-      data-kind="primary"
-      data-orientation="vertical"
-      data-radix-collection-item=""
-      role="menuitem"
-      tabindex="-1"
-    >
-      <div
-        class="_icon_1bcsk_44"
-      >
-        <span
-          class="_avatar_k41ul_17 mx_BaseAvatar _avatar-imageless_k41ul_60"
-          data-color="6"
-          data-testid="avatar-img"
-          data-type="round"
-          role="presentation"
-          style="--cpd-avatar-size: 32px;"
-        >
-          J
-        </span>
-      </div>
-      <span
-        class="_typography_yh5dq_162 _font-body-md-medium_yh5dq_69 _label_1bcsk_53"
-      >
-        Just activity
-      </span>
-      <svg
-        aria-hidden="true"
-        class="_nav-hint_1bcsk_60"
-        fill="currentColor"
-        height="24"
-        viewBox="0 0 24 24"
-        width="24"
-        xmlns="http://www.w3.org/2000/svg"
-      >
-        <path
-          d="M8.7 17.3a.948.948 0 0 1-.275-.7.95.95 0 0 1 .275-.7l3.9-3.9-3.9-3.9a.948.948 0 0 1-.275-.7.95.95 0 0 1 .275-.7.948.948 0 0 1 .7-.275.95.95 0 0 1 .7.275l4.6 4.6c.1.1.17.208.213.325.041.117.062.242.062.375s-.02.258-.063.375a.876.876 0 0 1-.212.325l-4.6 4.6a.948.948 0 0 1-.7.275.948.948 0 0 1-.7-.275Z"
-        />
-      </svg>
-      <div
-        class="mx_NotificationBadge mx_NotificationBadge_visible mx_NotificationBadge_dot"
-      >
-        <span
-          class="mx_NotificationBadge_count"
-        />
-      </div>
-    </button>
   </div>
 </div>
 `;
 
 exports[`ThreadsActivityCentre should match snapshot when empty 1`] = `
 <div
-  aria-labelledby="radix-20"
+  aria-labelledby="radix-18"
   aria-orientation="vertical"
   class="_menu_1x5h1_17"
   data-align="end"
@@ -184,7 +136,7 @@ exports[`ThreadsActivityCentre should match snapshot when empty 1`] = `
   data-side="right"
   data-state="open"
   dir="ltr"
-  id="radix-21"
+  id="radix-19"
   role="menu"
   style="outline: none; --radix-dropdown-menu-content-transform-origin: var(--radix-popper-transform-origin); --radix-dropdown-menu-content-available-width: var(--radix-popper-available-width); --radix-dropdown-menu-content-available-height: var(--radix-popper-available-height); --radix-dropdown-menu-trigger-width: var(--radix-popper-anchor-width); --radix-dropdown-menu-trigger-height: var(--radix-popper-anchor-height); pointer-events: auto;"
   tabindex="-1"
diff --git a/test/components/views/spaces/useUnreadThreadRooms-test.tsx b/test/components/views/spaces/useUnreadThreadRooms-test.tsx
index f840d54d5d..e8c9b97861 100644
--- a/test/components/views/spaces/useUnreadThreadRooms-test.tsx
+++ b/test/components/views/spaces/useUnreadThreadRooms-test.tsx
@@ -51,6 +51,28 @@ describe("useUnreadThreadRooms", () => {
         expect(rooms.length).toEqual(0);
     });
 
+    it("an activity notification is ignored", async () => {
+        const notifThreadInfo = await populateThread({
+            room: room,
+            client: client,
+            authorId: "@foo:bar",
+            participantUserIds: ["@fee:bar"],
+        });
+        room.setThreadUnreadNotificationCount(notifThreadInfo.thread.id, NotificationCountType.Total, 0);
+
+        client.getVisibleRooms = jest.fn().mockReturnValue([room]);
+
+        const wrapper = ({ children }: { children: React.ReactNode }) => (
+            <MatrixClientContext.Provider value={client}>{children}</MatrixClientContext.Provider>
+        );
+
+        const { result } = renderHook(() => useUnreadThreadRooms(true), { wrapper });
+        const { greatestNotificationLevel, rooms } = result.current;
+
+        expect(greatestNotificationLevel).toBe(NotificationLevel.None);
+        expect(rooms.length).toEqual(0);
+    });
+
     it("a notification and a highlight summarise to a highlight", async () => {
         const notifThreadInfo = await populateThread({
             room: room,
@@ -107,7 +129,7 @@ describe("useUnreadThreadRooms", () => {
 
             const { result } = renderHook(() => useUnreadThreadRooms(true), { wrapper });
 
-            expect(result.current.greatestNotificationLevel).toBe(NotificationLevel.Activity);
+            expect(result.current.greatestNotificationLevel).toBe(NotificationLevel.None);
 
             act(() => {
                 room.setThreadUnreadNotificationCount(notifThreadInfo.thread.id, NotificationCountType.Highlight, 1);