You must connect to the internet at least once to sign in and activate your software.
Administrators can use the Adobe Admin Console to build a "Package". This package includes the full binaries and can be deployed to computers without an active internet connection at the time of installation. adobe creative cloud offline installer
If you manage licenses for a team, use this method. It is far superior because it bundles the license file, preventing users from having to log in. You must connect to the internet at least
It was a cruel riddle.