Yeah, the game will release on mobiles too but this lite version is different from the mobile one.

t's a lighter-weight version of the game, It keeps all the gameplay, story, and world content identical to the standard version but it uses lower resolution textures, simplified assets and it takes up much less disk space (68GB instead of 110 Gb).

Another comparison (Empire State map)

Well, it's the only way to make the game playable on 8GB of Vram.
They should have done a better job with VRAM efficiency.

I get what you mean, but this is just a stress test to show the worst case scenario, also in this game, you don’t need a lot, just a single roll can tank the FPS.