Wow, blown away by how much better the new password manager is! If they add support for custom fields on each login, this could almost completely replace my need for a 3rd party solution.
I also saw a comment from the dev team that they're "aware" of the need for such a feature but it's not on a road map yet.
Firefox's Lockwise App (on android) leaves a lot demanding though.
earlier in this year I switched from bitwarden (which I would still recommend) to keepass because I wanted to fill desktop passwords... but there is the added benefit that you actually don't need a browser extension if you don't want to. instead ive been using the autotype feature that can be run from a hotkey.
(There's an Android app, too. I'm just not familiar with Android's affordances for that sort of thing so I can't really comment on how it works.)