The Team Inboxes mailbox gives you a unified view of conversations in the team inboxes you actively work on (teams you are an Active member of). It does not include conversations of team inboxes in which you are an Observer.
Let’s say you are an active member of both the 📈 Sales and 🆘 Support teams. When you arrive at the office in the morning, instead of opening each team inbox separately, you can open the Team Inboxes mailbox and see everything in one place.
Read more about assignment and team inboxes on this page.