Once a generation you might get a Death Stranding 2 or something, and really enjoy it, but other times you’re stuck with the original Lords of the Fallen, because you like Souls-likes, and that’s your only game this month or quarter.
And yes, of course, just because a game is rated highly doesn’t mean you’ll enjoy it. Still, unless you have really specific tastes, the chance that you’re going to enjoy a highly rated game, compared to a mediocre one, is much higher, in my opinion, doesn’t matter if something looks interesting.
I’m also talking about a hypothetical, mainstream consumer here, because those are the ones that a review score is for.