The thing is on PC is that we have options and ability to customize them to run games. Plus different setups with different display resolutions etc.
It will be a long while before most game devs change their engines to support the new features of next gen, that makes us of new hardware.
That and the constant new GPU features like DLSS, RiS and high quality TAA which already destroys performance on next gen consoles on games that implement it.
We can brute force resolutions and FPS to sky high that would make most console only gamers blush. Like running games at 8k with DLSS. Or 4k at over 120FPS on Death Stranding.