Arkenfox has some info on common extension and their use in their Wiki

Especially the “Don’t bother” section is interesting and can slim down your used extensions considerably.

I’m curious. I know Bitwarden or keepass can handle TOTPs, but can’t I unlock your Bitwarden vault and have access to your password and 2fa code? Or do they have protection against it? Otherwise I have everything I need.

Well, that’s what backups are for. I sync my Aegis backups between phone, tablet and PC via syncthing. It’s convenient to have authy handle bwckups for me, but if I use 2fa I don’t want to water down its usefulness right away.