Board Thread:Support Requests - Getting Technical/@comment-37194541-20190818020957/@comment-4261769-20190818040220

The account would have the "staff" tag on their masthead. For example, see User:Sannse.

You may also install ShowUserGroups in your global JS so that it show will show all user groups associated with an account (locally and globally). This would be good in the instance where a wiki has administrator/bureaucrat listed as staff via ProfileTags.