What does look better mean to you, exactly? And what PC is required to hit that target? I think stuff like snow deformation is a huge part of a game looking good, interactivity with the environment matters so much to me. The snow deformation in RDR 2 was the first thing to blow my mind in the game. Why are there any sacrifices of this sort when porting to superior hardware?
First of all, they didn't pull that snow out because the PC couldn't handle it. The port developers didn't port the game properly. Now that it's in the hands of GG, you'll see the game get patched to where it's supposed to look. Same thing happened with RDR2 on PC.
Look better means
1) True 4k so we can SEE all the rendering taking place. You can't see rendering when you have upsampled pixels. That's not acceptable.
2) Better texture filtering so we can SEE the clear crisp textures at a distance instead of seeing blurred textures just 5ft away from you.
3) More detail.. adding anymore geometry is going to tax the GPU because it has to render it! Suprise. More detail yields better image.
4) Higher sampling for ambient occlusion. I can't stand the typical SSAO technique. It's sorely old and truly inaccurate. Better to have RTX ambient occlusion
5) More more more of everything graphics related. More FX, more fur, better shading, better volumetrics, etc..