diff --git a/src/app/hooks/useAutoDirectSync.ts b/src/app/hooks/useAutoDirectSync.ts
index ecc8b047..75ffadd3 100644
--- a/src/app/hooks/useAutoDirectSync.ts
+++ b/src/app/hooks/useAutoDirectSync.ts
@@ -2,7 +2,7 @@ import { MatrixClient, Room, RoomEvent } from 'matrix-js-sdk';
 import { useEffect } from 'react';
 import { AccountDataEvent } from '../../types/matrix/accountData';
 import { Membership } from '../../types/matrix/room';
-import { getAccountData, getMDirects } from '../utils/room';
+import { getAccountData, getMDirects, isBridgedRoom } from '../utils/room';
 import { addRoomIdToMDirect } from '../utils/matrix';
 
 export function useAutoDirectSync(mx: MatrixClient): void {
@@ -17,6 +17,13 @@ export function useAutoDirectSync(mx: MatrixClient): void {
       const joinedAndInvited = room.getJoinedMemberCount() + room.getInvitedMemberCount();
       if (joinedAndInvited > 2) return;
 
+      // Bridged portal rooms (mautrix-telegram/whatsapp/discord/…) live in the
+      // per-bridge personal filtering space (Channels tab) — don't pollute
+      // `m.direct` with them. `useDirectRooms` already filters bridged rooms
+      // out of the Direct tab visually; this prevents the underlying account
+      // data from accruing stale entries for other clients to misclassify.
+      if (isBridgedRoom(room)) return;
+
       const mDirectEvent = getAccountData(mx, AccountDataEvent.Direct);
       if (mDirectEvent) {
         const directs = getMDirects(mDirectEvent);
diff --git a/src/app/pages/client/direct/useDirectRooms.ts b/src/app/pages/client/direct/useDirectRooms.ts
index 52b87adb..7a8f655a 100644
--- a/src/app/pages/client/direct/useDirectRooms.ts
+++ b/src/app/pages/client/direct/useDirectRooms.ts
@@ -8,12 +8,17 @@ import { useDirects, useOrphanRooms } from '../../../state/hooks/roomList';
 import { roomToParentsAtom } from '../../../state/room/roomToParents';
 import { useBotPresets } from '../../../features/bots/catalog';
 import { isBridgeStateEvent, isCatalogBotControlRoom } from '../../../features/bots/room';
+import { isBridgedRoom } from '../../../utils/room';
 
 // After P3c the Direct tab is universal: every joined non-space «orphan»
-// room renders here, regardless of `m.direct`, except curated bot control DMs.
-// Those belong to the Robots tab, while bridged Telegram portal rooms remain
-// normal Direct candidates. Implementation =
-// `useOrphanRooms ∪ useDirects`:
+// room renders here, regardless of `m.direct`, except curated bot control DMs
+// (Robots tab) and bridged portal rooms (mautrix-telegram/whatsapp/discord/…).
+// Bridged rooms are filtered out here so they live exclusively in their
+// per-bridge personal filtering space (Channels tab) — otherwise a 1:1
+// Telegram chat that the bridge tagged `m.direct` AND placed inside the
+// Telegram space would appear twice. Implementation =
+// `useOrphanRooms ∪ useDirects`, minus catalog bot control rooms and bridged
+// portals:
 //
 //   - `useOrphanRooms` = `isRoom && !mDirects.has && !roomToParents.has` →
 //     non-space rooms that don't live inside any space and aren't m.direct-
@@ -79,7 +84,10 @@ export const useDirectRooms = (): string[] => {
     const out: string[] = [];
     const isVisibleDirect = (id: string): boolean => {
       const room = mx.getRoom(id);
-      return !room || !isCatalogBotControlRoom(mx, room, bots);
+      if (!room) return true;
+      if (isCatalogBotControlRoom(mx, room, bots)) return false;
+      if (isBridgedRoom(room)) return false;
+      return true;
     };
 
     orphanRooms.forEach((id) => {