I do have minor issues when scaling my 4K screen to a lower resolution, and starting a fullscreen game, but that’s about it.

I'm not sure if newer tech has better viewing angles than my old (but not that old) IPS LCD, but having having greater color depth to represent color fades with finer progression, and having more pixels to spread the fade across (hidpi), does sound like a nice step forward to me.

~"1.07 billion colors" though? Ehhh, I can't deny that does feel like overkill, but I'm honestly not even sure if there's a way to fix the above problem with a smaller colorspace.

Given that we're starting with 24 bits / 16.7 million, we're just up 6 bits more.. or 2 more bits per color... so a purely red gradient would have 4x as many steps.

And we're using some of that space to get "whiter than white" -- so that the brightest white in photos/videos can be brighter than the normal value of white. https://www.lifewire.com/how-apple-devices-show-hdr-brighter...