nixCraft 🐧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 .
jstm@sos:~$ 
@nixCraft I use a username and password but I have a button on my Streamdeck that launches konsole with sshpass so I don't have to type in my login credentials every time I connect to my server.