Just explain me, "IT Expert", why all drivers, except 20.4.2 and down have identical problems? Clean install Windows or not, it does not affect situation in any way. No changes in system, besides driver version. Your subjective experience means nothing and does not prove anything. In consoles used AMD hardware, but PS 5 use propriethary API, Xbox Series X/S use DirectX 12, Google Stadia use VulkanAPI and only PC version use DirectX 11. Nvidia GPU always worked better with games on DX11, unlike AMD. Remove this old API from game and let it use DX12 or Vulkan and there will be much less problems with FPS on AMD cards.