Poll: The most common way I've seen for SSH access to #Linux or #Unix servers (please boost for reach. TIA):
Username and password
SSH authorized_keys (pub key)
SSH Certificates
Other (I will reply below)
Poll ended at .
SSH in FIDO2 hardware keys does work pretty well already.
@nixCraft public keys managed with an initialization Ansible role.
I've tried ssh certs, but it's more annoying to manage for my setup so far