I got so paranoid about librewolfs unique fingerprint that I threw it away and started using mullvad browser I use the one you can manually download from mullvad website, as mint doesn't support mullvad repository. I just now tried the flatpak one and it was showing 600+ visits...but it's unverified, so idk if that's something to worry about?
I use basic firefox for stuff where I need to log in as me. probably won't prevent some goddamn AI from spying on me but at least I feel one bit safer