[rcxdude]

The issue there being there's a big usability headache with enrolling multiple devices. You really want one device to be able to enroll all your devices (including not-present and offline), but there's no mechanism to do this with the way the webauthn spec works at the moment.

[bo1024]

That's such a bummer and seems like poor design. It ought to be easy for a user to have multiple keys associated with their account.