Man, some of the discourse here is pretty...strange. I don't understand this 'it got the highest metacritic so it should be the game of the year' arguments. Like, review scores are often meant as a metric of how well it did something specific, Forza Horizon is an outstanding RACING game, but it's still just a racing game. that doesn't mean it's not great, it just means it's a bit more niche. It didn't and won't have the impact of a Death Loop or Returnal or Ratchet & Clank or Metroid Dread or It Takes Two.
I've only played it for an hour and I have come to realise it has those things, much more than previous entries, which also had them... In smaller capacities.
You haven't played it.