How to Manage Guest Accounts from Microsoft Teams

Some changes in the Microsoft Teams desktop and browser clients will allow users to decline guest invitations from other organizations, leave organizations, and hide organizations from Teams. Although leaving another organization has been a well-trodden path for several years, it’s required knowledge to find the right place to go. Having these options in Teams makes it much easier to manage a cluttered set of organizations.

https://office365itpros.com/2021/12/15/manage-guest-accounts-from-microsoft-teams/