Summary
SSH FIDO2 Support
https://developers.yubico.com/SSH/Securing_SSH_with_FIDO2.html
Use case
Support FIDO2 verification for SSH authentication.
Additional information
Supporting SSH FIDO2 requires the following to be set on the SSH server. This option isn't currently exposed via the VyOS CLI.
"PubkeyAuthOptions verify-required"
OpenSSH 8.3 or newer is required to support this.