Display of Archived Teams under Active Teams
1. Teams that are archived are still displayed under Active Teams. This is because of the Graph APIs not returning the teams that it should actually return.
2. If a user is logged in to Teams Manager as an Non-admin, there is a possibility that not all the active Teams are returned by Graph APIs. Some Teams will be missed out in display of Active Teams.
There is no workaround available yet, and a ticket will be raised with Microsoft to solve this issue.