The only thing I’d add to that is that, whenever possible, sit closer to the camera to begin with to reduce the necessity to zoom in. I find that sitting very far away, zooming in really close makes manual panning left/right/up/down a bit trickier. My rule of thumb - move as close to the camera as your widest ‘zoom out’ level will be. If that’s a full classroom setting, I suppose that will mean sitting away from the camera. If it’s a meeting with only a few participants, move closer to the camera.