/lit/ - Literature

Hi this is probably a weird question

What do you call it when a book intentionally reject having a clear sense of atmosphere and tone? Like a book that makes you think it's about someone's daily life and depression, but then later unexpectedly becomes a propagandic war story with fascistic undertones? Or maybe just a book where events take place with no rhyme or reason to it. I don't mean that things happen randomly, but that they just happen and it doesn't seem to have any point or literal reason for it. Kind of like a parody of real life, where nothing really goes in line with anything else. In real life, you can spend your whole life creating a fortune only to be diagnosed of cancer on your 40th birthday. No moral of the story and no karmic justice. Likewise, in real life, you have people arguing over video games in a forum while at the exact same time, someone's being tortured to death over nothing. No message, no meaning, just things happening. Are there books that reflect on something like this?

Hi casual reader here, new to this board

Why is it that so many writers love to dress a simple message in the most arbitrarily complex prose possible? Is that what makes it good writing? I always figured that prose should flow naturally and smoothly nearly always, but it seems like a bunch of people write with a thesaurus in the other hand, adding words that sound outwardly intelligent for no real reason at all. I can understand indulging in colorful writing when the situation calls for it, but it seems like a lot of writers just do it for the sake of doing it. The constant and pointless digressions just seem to make the text flow like shit for no real benefit, and seem to more serve the writer's ego than the text itself.

Am I just not /lit/ enough to get it or is this just writers mistaking quantity for quality? I personally love simple and functional prose.