Starting at the top, my: “Having a routine of creating Windows OS System Restore Points, plus a backup of the User Data folder - every 24 hours, helps.”
Before doing anything, do that. Otherwise, you decide.
The problem(s) of lost access to passwords and/or lost passwords, is not a simple matter and requires a lot of study. Above, I provided a basic set of what has SOMETIMES worked for an unknown, small number of Brave Browser users. My consolidated notes on the matter, are at:
‘Brave deleted all my active tabs and favorites - #2 by 289wk’