Just a few things I dislike in general:
I don't like it when newly released games have day one DLC. I just paid full price (usually $60+) for a new release title, but this character or that weapon or that costume will be $6 extra. Or you can unlock it all in game, but of course, that requires a 1,000 hour grind that nobody wants to do. I guess it's good for the publishers/other companies involved because it makes them money, but it still feels shitty to me.
Rushing and crunch times where people are working crazy hours a week for months at a time to rush a game out the door. That's a shitty way to treat employees in general (at game companies or otherwise), and it also usually means the game will be riddled with bugs and possibly unplayable on launch day because it wasn't properly tested. I miss the old "it'll get done when it gets done" thing that Blizzard and a few others used to do.
Pushing political agendas in games. Keep that shit out of my fantasy worlds.
Online only games. It's acceptable in MMOs and certain other games, but if your game has a single-player mode, that single-player mode should be playable offline.
The "everything must be realistic" idea. "Women can't fight in bikinis and heels! Unrealistic battle attire!" "Guns don't work like that! Reloading should take way longer!" "That guy should've been dead after the first bullet he took! Why is he getting back up??" I don't give a shit about things like that, because I play video games to escape reality.
Also any kind of decision that's geared towards esports but makes the game less fun for regular players.