A new setting available in Teams meeting policies allows Office 365 tenants to have per-user control over who can present at meetings. You might want to do this to stop guests presenting. or to limit some people from inviting others to present. I’m not quite sure what the use case is, but no doubt some people will find great value in the new setting.
https://office365itpros.com/2020/05/26/limiting-who-can-present-teams-meetings/
