The API support exists to put tooltips on toolbar icons, but it is up to the author of an extension to create and set the tooltips. I agree this should be mandatory but today it isn’t,
TOTALLY agree. SU on Mac (M1+Big Sur) with multiple monitors is like the wild west. Let me save my workspace layout so any window I have open on any screen (and desktop/Space) REMEMBERS where it is and obediently stays there when waking from sleep or opens there when SU starts. Not difficult to do, surely. In the meantime, any apps or extensions that will do the job? I was looking at Magnet and BetterTouchTool but so far, nothing does this.