“Me too.” 
It’s a great gain in security and I really desire it for the mobile apps and browser extensions.
Especially with the mobile app, I would rather like to log out and log back in swiftly, instead of using biometric unlocking… nothing against that in general, but since my Android phone also works with biometric unlocking, I really miss an (relatively) easy way to make the BW mobile app “more secure” here. With easy logout/login, it wouldn’t even leave the local data on the phone.
BTW, though that request didn’t get much traction yet, I would like to point out that using more than 5 such passkeys could be needed in the future: Passkeys: Support more than 5 "login-with-passkey"-passkeys for the Bitwarden account/vault (FIDO2 passwordless login) (since more devices than “in the early days” of FIDO2, can now store passkeys - even those “with encryption”/PRF)