Does that mean banned on an instance or something other than that?

You can get banned at the instance level or at the community level.
If you get banned from your home instance (where you made your account, in your case programming.dev) then you can't login anymore and you're effectively 100% banned.
If you get banned from a remote instance, you can still login, but can't interact with communities or users from the instance who banned you.
If you get banned at the community level, you can no longer interact with that community.

You can check the modlog on the web, search for that username and see what happened.