It's possible that I'm just missing the distinction here between passkeys and FIDO security keys. Because all of the things I'm seeing in this space fall into just one factor of authentication.

I will point out that I explicitly called out 2FA as being necessary. And any of PIN/Biometric (not sure what screenlock is), seems like that 2nd factor to me. So if these are different things, then the rollout is going really rocky (on par with Wii vs. Wii U), and they should probably come up with a better naming schema.