Sending multiple windows over screensharing actually seems easier than sending the desktop to me - because you only look at one window at once, the rest don't h

Sending multiple windows over screensharing actually seems easier than sending the desktop to me - because you only look at one window at once, the rest don't have to update at full frame rate, or at all. And it's easier and more power-efficient (because of hardware video encoding) to use screen sharing instead of sending drawing commands etc.