I keep coming across it with new titles these days and it's not a hardware problem as douchebags will inevitably claim. How many times have you guys found a title you think "Okay, maybe I'll give that a chance" you install it and after awhile of playing there's an instant CTD.
Or as is often the case because big game studios insist vomiting high polygon count everywhere the FPS is atrocious even on high end machines because they don't understand that the majority of people don't have 4090 gtx cards and 8k monitors. There's all kinds of basic stability shit going on that makes me feel like I'm looking through someone's alpha project they've barely started debugging yet and it pisses me off. It's no surprise that 2D games are regularly hitting the charts because I wonder if it's people getting sick of all this and defaulting to 2D games because they can't trust a 3D game to run properly.
My standards are so fucking low in a game now the first thing I have to ask is, will it run? And will it crash? If the answer is yes to either of those things then you just immediately move on. Game devs seriously need to learn to stop the fucking polygon vomit. I mean Cities Skylines 2 is a great example of this and it's interesting how pissed off gamers are getting with these titles nowadays.
Edit: Oh yeah I can't forget game breaking bugs in the pathfinding AI etc. that quite a few devs are guilty of. You often have to dig through forum posts to find out about those.
I feel like, FPS, crashes and AI pathfinding are all something most people can agree on, as far as I'm concerned with modern games if you're on a mid-tier machine and the game just outright breaks down and is unplayable that should result in instant downrating. Same goes for pathfinding and AI generally because if that's bugged to hell it can completely destroy the experience no matter how many features are hyped up.
Functionality is definitely a big part of it. Like Starfield would get very few positive points for it's shooting mechanic because it's so basic(and buggy), and there's a lot of shit that gets in the way without adding a lot of variability. Games like Roboquest would get much higher marks, because the shooting is better made and has systems in place to greatly differentiate player experience within it.