Microphone-based camera control
Always put the important ones in the picture.
For this reason, we have looked into various video conferencing systems. Especially in larger rooms, we found that often either participants are cut off or the participants in the back are difficult to see. Also, most of our customers do not want to have to adjust and zoom the camera with a remote control or similar during the conference.
And the whole thing automatically when someone speaks "a little" longer.