Xbox and LinkedIn tab
Next to Notifications, Chats, Calendar, etc. there should be a tab for Xbox and a tab for LinkedIn.
On the Xbox tab it should show a Timeline of achievements/activities of contacts to which a user can reply/share etc. Maybe on top of the tab show a banner with recommended games, new releases in GamePass etc. to increase engagement. Chats on Xbox should be federated and integrated with Teams chats.
The LinkedIn tab should provide the same time line as on LinkedIn. Allow for responses to items on the time line as in the LinkedIn app. Chats on LinkedIn should be federated and integrated with Teams chats.
In general; these are just two examples of how Teams for Life engagement can be increased. Either way the platform needs to be expanded with existing Microsoft services.