In the Accounts section, click Windows backup (not "Sync your settings" – that’s misleading; in Windows 11, sync is now mostly under backup).
By default, Windows 11 uses "Windows Backup" to sync passwords, language preferences, and other system settings.
Even if Windows sync is off, Edge might still sync separately.
→ Accounts → Sync your settings (may be missing in latest 24H2+ updates; if so, use Method 1).
If you want to disable sync for specific settings, such as theme, passwords, or language preferences, you can do so by following these steps: