I've also been waiting with bated breath; I simply won't adopt passkeys until I can use a cross platform tool that doesn't try to lock me into a single vendor's hardware or software. But once that's available, I'd be very happy to switch certain accounts to passkeys. It doesn't matter all that much to me since I use unique, long passphrases generated by bitwarden for every account + OTP when I can, but I would slightly prefer a passkey to a password since it's one less thing an auth provider can screw up.