Ooh there's this thing called Auto-Type in KeePassXC. I am a clueless normie after all...

And it appears to be customizable how the Auto-Type types... meaning I don't have to copy-paste anything. Well gee...

Wrt Bitwarden, yes I know I can self-host a server, but, managing servers is a bit of a pain, especially for things which clearly need no server.