Microsoft Teams allows users to create Teams and channels for use with projects, collaboration, and efficient communication. However, periodically, projects end, Teams’ purposes change, or a Team may no longer be of use. By hiding Teams that are no longer in use, your Team List or Grid view will be easier to manage by showing only those Teams that are in active use.
In either the Team List or Grid view, select the More Options ellipsis (…) and select Hide. Once hidden, a separate area at the bottom of the Teams Grid or List will appear. Any team placed in this area can be unhidden and returned to the active Teams area.