there's still plenty of firefox forks you can use that won't go this ai route or will simply turn it off by default. Librewolf, mullvad, zen, floorp, etc.

if you want to go the chrome route there's vivaldi although for whatever reason lately it doesn't save anything when i'm using it on nixos and it's kind of an ugly bloated mess now.

I use Qutebrowser so I have none of the issues from either.

Give Vivaldi a look