It's not nominated because people and critics are tired of the same open world pseudo RPG game. Same reason Starfield did not get nominated. Look at the nominations:
Alan Wake 2 (survival horror)
Baldur's Gate 3 (a proper RPG)
Spider Man 2 (it's Spiderman, simply flying around the city is fun)
Resident Evil 4 (remake of legendary survival horror game)
Super Mario Bros. Wonder (it's super Mario)
The Legend of Zelda: Tears of the Kingdom (it's Zelda).
The only game there that could fit in the "open world pseudo RPG" genre is Zelda, but it's usually so well made and executed as a Zelda game that most people don't really care. People will play a Zelda game no matter the genre.
The Legend of Zelda: Tears of the Kingdom (it's Zelda).
To be fair they took the physics fuckery up to a new level and in the open world it genuinely makes one of the most weird and enjoyable sandboxes you can possibly mess around with. Nintendo's attitude of "fuck it, just let players break the game" was a very good decision.
In terms of gameplay it's really not like other open worlds, it successfully manages to feel and provide something different.
It does wear outbnewr the end but I've realized something that is gonna make me use more unique and weird building mechanics just causenull have to, I'm just not gonna get the paraglider next play through! it's an optional item this time