pop_OS is a de-crapified Ubuntu remix. It’s not a stand-alone distribution. For most packages pop_OS is reliant on Canonical, including graphics drivers. So if you want to use it for gaming and have and AMD or Intel GPU and not an NVidia one, you’ll have to stick to Ubuntu’s outdated Mesa and kernel drivers. For gaming on AMD/Intel GPUs, something along the lines of EndeavourOS or Fedora should be a better choice. If you use a GeForce, pop_OS should be OK.