Wouldn’t that be confusing?
The style of “work” meeting apps like Zoom, Teams, Meet, have this when a participant threshold is crossed, but this was never a behavior in the school of apps we took inspiration from, like TeamSpeak, Ventrillo, Mumble, Discord, etc.
I feel like this extra step doesn’t really have much prior art, and feels like an extra step that further complicates UX for newbies.