Having the feature to add/upload PNG/JPEG pictures for teams/groups (just like individual profiles) this would make it easier to view what team has updates and create an easier to use flow. For both the Mobile App and Desktop App.
Teams in the app have the same icon. This is especially repetitive in mobile. Giving the ability for teams to use an that is relative to their purpose would make it easier for users to find them (again especially useful in a smaller screen)