Surely nowadays hardware such as 7000 ryzen series and 4090 gpus are leaps and bounds above PS4 hardware.
It also has shared memory between the CPU and GPU that are harder to do with a discrete GPU. See how much work Dolphin has to do with the various direct write memory tricks for the GameCube. Now imagine that kind of trickery on a bigger scale for the PS4.
I guess there may be ways to do it not really legally by some hacker and then sharing it with others.
Not that I support it, but there are still people who don't see problems with such behavior.