I’ve switched away from 1password to proton recently.

it’s fine, it’s far less accurate than 1p was. Let this be a caution, 1password is great for user experience, I hardly noticed it because it always worked. Proton can’t see every login field, doesn’t know when to suggest a new password, won’t save passwords after it has suggested one, doesn’t update login credentials after updated passwords etc etc.

I’m unsure about bitwarden in particular, but I can vouch for the fact that a less intelligent app might be a dealbreaker for some.