I know 100% that people will argue with me over this, but I miss when movies were professionally lit, when actors were intentionally blocked, and when more than teal, orange and beige were allowed to be on the screen. The medium has something to do with it--film made a lot of these things fundamentally necessary--but I think it's more complex than just that. The last few years' movies are just not pleasant to look at, with very few exceptions, and the change occurred sometime around 2015.
@Gargron The thing that bothers me the most is the sound quality. Older things took pains to be audible. Modern stuff, half the time I can't understand what they're saying. But it's not my ears. I go back and listen to older stuff, and it's still clear.