Conversations among multiple participants for collaboration and communication in Teams
If you want to have a meeting with a large audience as well as having a Q&A session with them then you may consider a live event feature. It can handle up to 10,000 attendees.
Please see this demo video:
https://www.youtube.com/watch?v=pGmdfUL5mGU&...
Disclaimer:
Please note, this is a peer-to-peer support forum meaning I'm just fellow regular MS Team forum users like you who are trying to help other MS Team forum users with their MS Team issue. So in this case, I'm Non-Microsoft Staff I don't have access to your account nor I'm authorized to do so. I hope we can have a mutual understanding from the beginning to prevent misunderstanding.