The actual reviews indicate strongly the reviewers had a lot of fun with the game and the gameplay. The negatives seem to be mostly these:
1 - Technical issues, especially on consoles where performance and load times were a big factor in the review scores.
2 - Technical issues with crashes, even on consoles (but also PC).
2a - Not in a review, but I also read that EPIC hides the INI files so you can’t do any tweaking, extra PITA for those with Ultrawide displays.
3 - Some complaints that more wasn’t done with the story telling because of the silent protagonist. Which… I mean, story elements have never been a big draw for me in games like this, but even so the reviewers seem to like the story, they just think that it could have done more with such an atmosphere drenched world.
Largely, the stuff you want to work does - the open world works and feels great, as does the gun play. The horror and survival elements are on point, all the important stuff. And it’s scoring in the low 80’s, which shouldn’t be “merely decent” but I guess is to a lot of gamers.