OK, just to be clear:
This is a laptop upgraded from 10 to 11?
Did you have password syncing disabled on 10?
Wait. Did 10 even offer password syncing? I know the Microsoft Authenticator app for Android offers it.... And The browsers offer it in the respective browsers for their respective accounts that you log in to - but Win11 saving PWs?
I may not be seeing it because I have somehow disabled it in the past - or because Edge is already syncing (which I rarely use as a browser except for work stuff, so....not many passwords saved there to begin with).