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.
Don't remember the exact messages.
Was following these instructions off the official page.
Got to where the orange line is on the screenshot below, and it started throwing up a load of network errors. Again can't remember the exact messages, it's been a month, but it was saying that the Repos were unreachable. And pacman then stopped working entirely until I removed the Repos.
Edit: I'll run through it again tonight and come back with actual answers