Arch Linux

I plan on installing Arch on the ROG Ally X because:
1: I need it as my daily driver.
2: Don’t want the OS to be immutable.
3: Don’t want a “handheld OS” with Steam preinstalled (Steam is a privacy nightmare and I plan on at least using it within a sandbox).

Is there anything I should know / do before the installation or any tips anyone has for better compatibility? Or anyone who’s gone through the process whom I can learn a thing or two from.

Thank you in advance <3