As far as I remember from all the Digital Foundry videos I binged, developers usually choosing higher resolution but not stable (small drops from here and there) frame rate for Xbox SX and lower resolution but stable frame rate for PS5. I remember Hitman 3 and Cyberpunk 2077 being like that for example.

But to my eyes if someone doesn't circle the differences in bright red and shows it to me I can't understand the small differences in shadow rendering techniques and whatnot. They should look almost same.