I may be misreading this, but POP!_OS will work more than fine on an AMD CPU/GPU, as will any modern Linux distro. However, for people that Nvidia’s proprietary drivers, POP!_OS also has pretty good integration out of the box that sets them apart from other distros (likely because the developer, System76, also makes laptops with Nvidia GPUs).
That being said, I’ve been on EndeavourOS for the past year and a half and I really like it so far. It’s basically just arch but with a GUI installer and some extra theming/add-ons, which personally has worked great for me.