Next to the Start button use the search field and type: control panel
Click on the result. Go to: Credential manager.
Microsoft stores passwords there. If you see some for websites you are saving passwords for then it is not the Brave web browser causing the issue. I would think any updates would leave stored passwords alone there as my work pc has updates each month and none are wiped.
I use Chrome at work and they store passwords and are unaffected.
See #50 for links to how to’s for Brave.
No passwords in credentialing manager