My wife went to school for English lit and is a professional writer. I cannot get a plot twist past her notice. It sucks so much. There was a video game that featured a serial killer (no spoilers, so no title) and I NEVER would have guessed who it was. I played it and I was shocked at the twist. Then I had my wife play it and in the first five minutes of the game she was like "That man is evil and I don't trust him" and I was like WTF!!!!! He's like nice and friendly and stuff. How the fuck does she do it. I spent hours having to gaslight her about how correct her prediction was. She also always knows when someone is going to die. I have to tell her not to comment predictions about movies because she's correct at least 70% of the time.

I do this to myself and then get disappointed 20min later.

"Nah, surely they wouldn't make it that obvious, that would be downright bad writing... More clues, they must be trying to lead me astray and then surprise me with a better twist! Oh, it really was just the obvious one... Hmm."

It’s just better to not talk about the movie while watching the movie. No need to build expectations or even lead the story.

Let the story tellers tell the story.

Oh here is my strategy:

Friend: "I really like X, I hope they don't die"

Me: "Oh they go hard in the final episode its great!"

Friend: "WOOOOOOOOW SPOILERS!!!!"

Me: "I'M SO SORRY"

The character dies in episode 4

Friend: "YOU FUCKING LIEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEED!!!!!!!!!!!!!!!!!!"

I've done this more then I'd like to admit

A movie that can be "spoiled", is not a very good movie. It means it is a one trick pony and would not withstand repeated viewings. Good storytelling means you don't get bored rewatching it.

Let's be honest, why should plot twist be even unexpected anyway?

is there a community for not having friends growing up / ever and literally not having experiences about this

I just say before it starts "I won't say anything about the movie, even if you comment on it."

I hate it when that happens.

Gaslighting is when you convince someone their lives experiences aren't real, not when you don't confirm or deny someone's guess.