The only case where i can see myself spend more time on Xbox series X over PS5, is if most of multiplat, mostly those i play will run better on Xbox series X, and i'm not just talking about graphics here since some res diffrence isn't a big deal, but things like input lag response, online play ect, cases like RDR1, Bayonetta, or SF4 on PS360 for those who knows those games, it was the reason i spent more time on Xbox 360 over PS3 during 2010 to 2012.
Now do i think something like this is likely to happen with XSX/PS5? well i definitely don't think so, i actually even think that PS5 may win the input lag war, but of course, time will tell about those things. But i'm just saying, cause outside of this aspect i don't see what would make Xbox win over PS in next gen.