Sorry, maybe should have explained more clearly.
Yesterday & today the icon no longer appears - no idea what changed, I've changed nothing.
Disagree there's not much you can do - voice your opinion. Personally I'm too old to have to keep re-learning something just because some bright spark thinks something is "cool". These days, most of the "super duper, sic" features, just go to reinforce my view, I can live without them. Once an Apple devote, now a frustrated user.
On early releases of any Apple software, even as an Apple newbie, I rarely reached for the user manual or turned to the internet for help - they were just intuitive & simple to use. These days, with almost every update, I end up resorting to spending time researching how to do things. Example... iOS 11 -how to get out of split screen in Safari - dead easy, intuitive, right!?
Fretting - No. Frustrated.... and then some.