I think it's getting pretty close, but then every new generation looks pretty close until you see the next one.

The Nanite stuff in unreal engine 5 games is very impressive though.

I think the biggest barriers are still characters and face animation, even in triple A games it still looks pretty bad.

I'd be interested to see what they could do if they did something like LA Noire these days, but everyone seemed to give up on the technology after that game. If they did it again today with 8k face textures etc. it would probably look amazing.