It's mostly memes at this point, but I don't even agree that the lighting is "improved". It's punchy but it's extremely gaudy and unrealistic. It looks like everything is lit in a photo studio.
Is pre-rendered CGI lit like that? Are movies lit like that? Is real life lit like that?
The answer is no.
I think there's potential in the tech but the initial showing couldn't have been much worse than it was. It looks frankly ridiculous right now.
And I know it's in pre-alpha or whatever, but the fact that it took two 5090s to run this is crazy as well. Imagine what 2 5090's could do with traditional rendering. If this AI enhancement is this expensive, what's the fucking point?