Red Dead Redemption 2 with over 100 mods, including the Vestigia mod and ReShade raytracing preset running at 8K, looks better than RDR3 would on the PS6.
A new mod for Red Dead Redemption 2 is adding unofficial support for FSR 2.0. When Red Dead Redemption 2 released back in 2018, it was heralded as one of the most beautiful games due to its extremely detailed graphics.