A lot of this stuff is just designers imitating each other. You see this a lot in web design where every website uses similar colors, fonts, visual language etc. I've worked with a few good designers that do actual original design where the point is to be different in a tasteful way. Standing out from the grey masses. If you get a lot of people copying each other, it all averages out to the same bland/boring stuff.

A lot of Hollywood productions these days are sequels, re-runs, and endless variations of successful movies. Down to copying stylistic elements, color grading, etc.

I love Tim Burton and Wes Anderson as directors. Both use vibrant, saturated colors and have a very recognizable style. Tim Burton uses lush, saturated colors to portray suburbs (many of his movies feature lush green lawns white picket fences, etc.).

And Wes Anderson has his famous style of exactly centered subjects,using a lot of surrealist visuals, and elaborate sets and models. I loved the little Roald Dahl thing he did on Netflix two years ago or so (The Wonderful Story of Henry Sugar) where all of this was on display. If you haven't seen that, worth a watch.