Passkeys are the software version ('platform authenticator') of hardware keys ('roaming authenticator'), so no touching. Biometrics in this case are an attempt

Passkeys are the software version ('platform authenticator') of hardware keys ('roaming authenticator'), so no touching. Biometrics in this case are an attempt in software at something like the user presence test hardware has, but this is an OS-level guard, so the guarantees are much weaker. (Of course you can also have a biometric lock on a hardware key, which would be an improvement under the physical access threat model.)