You're trying to deny that it's possible to see difference in the visuals of video games, which is bizarre considering the whole point of new generations of consoles and GPUs is for the graphical improvements. I can see the difference in mesh density, texture resolution and lighting when I upgraded from an RTX 2070 to an RTX 3080. Do I have figures? No. But the obvious improvements were why I'd shell put so much for the card. Ditto for the PS5. And I can tell you with absolutely certainty: this game looks far worse on PS5 than Demon Souls does, or The Last of Us 2 does on my PS4 Pro.
Even people who really like the game generally will admit the graphics are not great. You can watch YouTube videos of people playing and there is plainly evident pop-in, low render distance and LOD issues. Also various other things like enemies walking through each other and so forth. None of it is critical, the graphics are perfectly playable, but it's well below what you'd normally expect in a highly reviewed AAA game on the latest hardware in 2022.
You can argue it's unimportant and the art direction makes up for it as many fans do, but instead you just seem to be sealioning.