The next immediate candidate for comparison is Sea of thieves. Due end of this month, fully optimised for XB. How well will PS5 hold up?
Last gen game with a cross gen update, so I'm going to guess that it'll run very well on PS5. If there are any issues at launch they'll be fixed up pretty quickly.
I think games would not only need to have Series consoles as the lead platform, but also be next gen only games (e.g. mesh shader and lots of compute) to really favour the Series consoles.
Alan Wake, Avatar, multiplatform UE5 stuff all seem to do well on Series consoles, and they aren't even targetting Series consoles as lead. Even with Xbox as lead, a cross gen XBone game is likely to run really well on PS5.