Remove a Showroom from my Showrooms Panel

Showroom is Shared with You

If you are the user invited to the showroom, you can simply remove yourself. See Remove a user from a Showroom.

Showroom is Shared with Teammate

If you see a "Team" icon instead, you can click it and see the teammate who is invited into the showroom. You have a couple of options for removing this showroom from your list.