Teams meeting attendees

chriswillson You are asking quite a few different questions there.

In general I would say the clients I work with schedule their meetings through Outlook, and they are not in a channel if it's for a large group. The only time I see channel meetings is in focused projects, e.g. a daily standup in a project team.

As maturity of Teams grows the number of planned and scheduled meetings decreases. If you are truly working as a Team you are in contact all the time through conversations, working out loud with sharing document while you are working on them, other people inserting comments and contributing materials. Every so often this might escalate into a voice or video call spontaneously. This is some of what we talk about as transformation, true teamwork and group accountability, rather than a top down culture of meetings.

In your case if one group of users want to discuss something, they probably already been discussing it. If it was sensitive then that might be in a private channel as a permanent structure, or a group chat if just temporary. If they feel they need to get on a call to sort it out reply to the thread with a meeting.