And why? Just curious. I have a couple and think they’re pretty neat. 
Yes, I have two as well (Yubikey). My passwords are stored in a bitwarden vault but having the 2fa keys on the same device as the vault seemed sketchy to me. I now use the hardware authentication for whatever sites support it (not as many as I like support it) and otherwise store the TOTP keys on the Yubikey and use the Yubico Authenticator for those that don’t support hardware authentication.
Nope. All in on passkeys now.
They are great so far, I just wish that support would roll out faster
I use 1Password. Depending on how the site implements two factor it usually works well.
Tried a Yubikey but it felt brittle. Like one software update would break it and then I’d be locked out. So sticking with passkey based for now.