I can't adjust the brightness of my Laptop's screen at all, it just always remains at 100%. The "Night Light" function changes the shade of the light, but not the brightness. I've added a screen shot of the laptop's specs in case it may help, and I'd also like to add that I installed the Nvidia driver version of Bazzite.
In addition to this, I'd also like to mention that I installed Bazzite on an older Laptop as well, and the brightness controls work perfectly there.