diff --git a/app/soapbox/features/feed-filtering/__tests__/feed-carousel.test.tsx b/app/soapbox/features/feed-filtering/__tests__/feed-carousel.test.tsx
index f4c4690a9..dc34e73e0 100644
--- a/app/soapbox/features/feed-filtering/__tests__/feed-carousel.test.tsx
+++ b/app/soapbox/features/feed-filtering/__tests__/feed-carousel.test.tsx
@@ -21,7 +21,7 @@ jest.mock('../../../hooks/useDimensions', () => ({
 describe('<FeedCarousel />', () => {
   let store: any;
 
-  describe('with "feedUserFiltering" disabled', () => {
+  describe('with "carousel" disabled', () => {
     beforeEach(() => {
       store = {
         instance: {
@@ -42,7 +42,7 @@ describe('<FeedCarousel />', () => {
     });
   });
 
-  describe('with "feedUserFiltering" enabled', () => {
+  describe('with "carousel" enabled', () => {
     beforeEach(() => {
       store = {
         instance: {
@@ -70,6 +70,8 @@ describe('<FeedCarousel />', () => {
           mock.onGet('/api/v1/accounts/1/statuses').reply(200, [], {
             link: '<https://example.com/api/v1/accounts/1/statuses?since_id=1>; rel=\'prev\'',
           });
+
+          mock.onPost('/api/v1/truth/carousels/avatars/seen').reply(200);
         });
       });
 
diff --git a/app/soapbox/features/feed-filtering/feed-carousel.tsx b/app/soapbox/features/feed-filtering/feed-carousel.tsx
index b30ecba0a..481ae138e 100644
--- a/app/soapbox/features/feed-filtering/feed-carousel.tsx
+++ b/app/soapbox/features/feed-filtering/feed-carousel.tsx
@@ -96,7 +96,7 @@ const FeedCarousel = () => {
     if (avatars.length > 0) {
       setSeenAccountIds(
         avatars
-          .filter((avatar) => avatar.seen)
+          .filter((avatar) => avatar.seen !== false)
           .map((avatar) => avatar.account_id),
       );
     }
diff --git a/app/soapbox/pages/home-page.tsx b/app/soapbox/pages/home-page.tsx
index 94dbc83b7..c65d9b86c 100644
--- a/app/soapbox/pages/home-page.tsx
+++ b/app/soapbox/pages/home-page.tsx
@@ -59,7 +59,7 @@ const HomePage: React.FC = ({ children }) => {
           </Card>
         )}
 
-        {features.feedUserFiltering && <FeedCarousel />}
+        {features.carousel && <FeedCarousel />}
 
         {children}
 
diff --git a/app/soapbox/queries/carousels.ts b/app/soapbox/queries/carousels.ts
index c908b352a..d6e05798a 100644
--- a/app/soapbox/queries/carousels.ts
+++ b/app/soapbox/queries/carousels.ts
@@ -1,12 +1,12 @@
 import { useMutation, useQuery } from '@tanstack/react-query';
 
-import { useApi } from 'soapbox/hooks';
+import { useApi, useFeatures } from 'soapbox/hooks';
 
 export type Avatar = {
   account_id: string
   account_avatar: string
   acct: string
-  seen: boolean
+  seen?: boolean
 }
 
 const CarouselKeys = {
@@ -36,10 +36,15 @@ function useCarouselAvatars() {
 
 function useMarkAsSeen() {
   const api = useApi();
+  const features = useFeatures();
 
-  return useMutation((account_id: string) => api.post('/api/v1/truth/carousels/avatars/seen', {
-    account_id,
-  }));
+  return useMutation(async (accountId: string) => {
+    if (features.carouselSeen) {
+      await void api.post('/api/v1/truth/carousels/avatars/seen', {
+        account_id: accountId,
+      });
+    }
+  });
 }
 
 export { useCarouselAvatars, useMarkAsSeen };
\ No newline at end of file
diff --git a/app/soapbox/utils/features.ts b/app/soapbox/utils/features.ts
index f57458f98..1927bde2e 100644
--- a/app/soapbox/utils/features.ts
+++ b/app/soapbox/utils/features.ts
@@ -205,6 +205,19 @@ const getInstanceFeatures = (instance: Instance) => {
       v.software === PLEROMA,
     ]),
 
+    /**
+     * Whether to show the Feed Carousel for suggested Statuses.
+     * @see GET /api/v1/truth/carousels/avatars
+     * @see GET /api/v1/truth/carousels/suggestions
+     */
+    carousel: v.software === TRUTHSOCIAL,
+
+    /**
+     * Ability to mark a carousel avatar as "seen."
+     * @see POST /api/v1/truth/carousels/avatars/seen
+     */
+    carouselSeen: v.software === TRUTHSOCIAL,
+
     /**
      * Ability to accept a chat.
      * POST /api/v1/pleroma/chats/:id/accept
@@ -371,9 +384,6 @@ const getInstanceFeatures = (instance: Instance) => {
     /** Whether the instance federates. */
     federating: federation.get('enabled', true) === true, // Assume true unless explicitly false
 
-    /** Whether or not to show the Feed Carousel for suggested Statuses */
-    feedUserFiltering: v.software === TRUTHSOCIAL,
-
     /**
      * Can edit and manage timeline filters (aka "muted words").
      * @see {@link https://docs.joinmastodon.org/methods/accounts/filters/}