Add a "Crowd sound mode" where the non-presenters can faintly be heard (e.g. 10% volume or some "far away" effect)
In a group meeting (e.g. 1-3 presenters, 10+ participants), hearing every participants at the same sound level as the presenters is not good, so currently, those who are not presenters are usually muted and they can use "silent visual reactions" (...