COP's story was completely flat, Stalker 2 at least tried to do something, I don't subscribe to the whole "EVERYTHING STALKER 2 DID IS SHIT" because I do genuinely like some of the things there. But I'm also not blind to the shitshow it is as well.
I think the ways they changed the factions is interesting, most people disliked that because they are parasocially attached to their own vision of said factions but it genuinely did look like a faction that had lost sight of what it was originally supposed to be, and I think it worked considering how many people got upset.
I think the overall plot of Spark is interesting, using the zone to create a world wide ilusion paradise for everyone, it plays into hard sci fi concepts while making it about the zone.
I think the way they handled story variation is sloppy, what is and isn't possible for the zone to do is complete dynamic and changes depending who you side with (ex. C-Con can story someone in it for eternity or not).
The ending I don't agree with, most of them, Noon being wasted? I never was attached to the monolith like I see some furries and tranny's being so I don't actually care, I feel like it shows the desperation of Strider quite well in that regard.
I think there is good things about Stalker 2, namely, the gunfights, the artifact collecting, the artstyle, and a lot of story concepts and overall tone, I also think there's a lot of wrongs, like the overall AI, A-Life being a meme shitshow, the weapon rooster, parts of the story, certain retcons etc.