I find this example interesting, because on the android side I would rank these two in the top 10 _most_ notable improvements made to phones in the last 5-10 years.
I have had multiple "normies" use my phone in the last few years and ask why it felt so smooth - and every time the difference between my phone and theirs has been a higher refresh rate display (what apple calls "ProMotion").
iOS, most apps, most websites, even most video isn't mastered as such and not consumed in those conditions.
Your GP and optometrist would certainly prefer you don't do it. I can't speak to the frequency of how much other people do it, but my wife and I try to avoid it, not always successfully.
I have an incredible TV. OLED with increased brightness, the latter being new tech. The combination of OLED and HDR is jaw dropping to witness. To me and to everybody that I show it to.
What do I show them? A Youtube list with TV demo videos that specifically demonstrate the effect. Deep blacks with locally bright highlights. Not to mention very deep vibrant colors.
I watch the demo videos every 2 months or so to remind myself that I have an awesome TV. Because I most certainly do not experience anything remotely like that on ordinary TV channels, streaming services, the like.
Streaming services absolutely have HDR programming. My GF has been incredibly impressed as a normie.
Probably more impressed than me because I consider OLED to be relatively meh for HDR. Not really bright enough for me, I only care about OLED largely for black depth / lack of glow and motion quality for games, I rarely watch TV/movies in comparison.
Hence my remark on OLED with increased brightness. In the TV world, they're called OLED.EXT panels. The new iPad Pro uses a different technique (layered panels) to achieve the same thing.
Infinitely deep blacks combined with high local brightness is god-like to experience.
The money I would give to have this in a form useful to me is beyond what most people would considerable reasonable. But god I want it.