Why "plesk login" command generates links like "192-0-2-2.plesk.page"?
It is a new feature (Technical domain) introduced since Plesk Obsidian 18.0.27. When a cleanly installed Plesk has a non-resolvable hostname, Plesk GUI is not secured with a valid SSL certificate and the user sees a red alert when tries to access Plesk GUI.
Plesk built a technical domain service that issues technical domain names for non-resolvable Plesk hostnames and assigns it to the servers. The technical domain name is secured by Let's Encrypt SSL certificate.