I only use a physical passkey for all of my applications, however the extension occasionally pops up and asks if I want to assign it a passkey, or use my hardware one.
I also had an issue where bitwarden was acting as a passkey despite me not logging into it, so whenever I would go to log in, it would suggest itself as the only passkey option and completely blocked the ability for me to use my physical passkey. Thankfully, this seems to have stopped.
Both get annoying after a little while and I would like there to be a toggle in settings which stops bitwarden from acting like a passkey at all.