It's not aesthetics for me as much as sufficiently older movies are a lot closer to stage plays in how they're filmed and storyboarded, and I generally dislike plays and musicals whatever the content is (case in point: I don't have any interest in Hamilton nor Disney movies). Then comes a lot of older movies having pacing that doesn't fit the time and mental energy commitment I am capable of making.

I can appreciate classics like Lawrence of Arabia, Dr. Zhivago, and the Deer Hunter, but I generally don't have 3+ contiguous hours to do anything anymore let alone watch a movie and I feel ashamed I can't honor such works with a proper, conscious viewing either. For "pop" arthouse movies closer to something like Begotten or Valhalla Rising, the effort to get value is even worse because I am not understanding what the symbols are and it becomes more of an exercise in "let's analyze scenes!" than "let's watch a movie to stimulate our minds." Some people don't like video games for similar reasons I feel - they want passive, decision-free entertainment.