I just got this laptop (Asus TUF A15 2021) today and it surprised me that everything works just fine out of the box on Vanilla Arch, except NVIDIA gpu I had to install it manually on battery power that’s why I enable powersaving mode. As for games performance it’s basically the same as windows no more no less.
Hm. Maybe I’ll take another shot. I was following the instructions, got as far as installing the keys, adding the Repos didn’t work, it broke pacman.