diff --git a/app/soapbox/actions/notifications.ts b/app/soapbox/actions/notifications.ts
index 4edd76c22..db8fd688f 100644
--- a/app/soapbox/actions/notifications.ts
+++ b/app/soapbox/actions/notifications.ts
@@ -11,7 +11,7 @@ import { getFilters, regexFromFilters } from 'soapbox/selectors';
 import { isLoggedIn } from 'soapbox/utils/auth';
 import { getFeatures, parseVersion, PLEROMA } from 'soapbox/utils/features';
 import { unescapeHTML } from 'soapbox/utils/html';
-import { NOTIFICATION_TYPES } from 'soapbox/utils/notification';
+import { EXCLUDE_TYPES, NOTIFICATION_TYPES } from 'soapbox/utils/notification';
 import { joinPublicPath } from 'soapbox/utils/static';
 
 import { fetchRelationships } from './accounts';
@@ -195,7 +195,9 @@ const expandNotifications = ({ maxId }: Record<string, any> = {}, done: () => an
 
     if (activeFilter === 'all') {
       if (features.notificationsIncludeTypes) {
-        params.types = NOTIFICATION_TYPES;
+        params.types = NOTIFICATION_TYPES.filter(type => !EXCLUDE_TYPES.includes(type as any));
+      } else {
+        params.exclude_types = EXCLUDE_TYPES;
       }
     } else {
       if (features.notificationsIncludeTypes) {
diff --git a/app/soapbox/utils/notification.ts b/app/soapbox/utils/notification.ts
index 907a97434..49c360b92 100644
--- a/app/soapbox/utils/notification.ts
+++ b/app/soapbox/utils/notification.ts
@@ -14,6 +14,12 @@ const NOTIFICATION_TYPES = [
   'update',
 ] as const;
 
+/** Notification types to exclude from the "All" filter by default. */
+const EXCLUDE_TYPES = [
+  'pleroma:chat_mention',
+  'chat', // TruthSocial
+] as const;
+
 type NotificationType = typeof NOTIFICATION_TYPES[number];
 
 /** Ensure the Notification is a valid, known type. */
@@ -21,6 +27,7 @@ const validType = (type: string): type is NotificationType => NOTIFICATION_TYPES
 
 export {
   NOTIFICATION_TYPES,
+  EXCLUDE_TYPES,
   NotificationType,
   validType,
 };