I haven't found a need to compare and contrast between PS5 and XSX in terms of game performance, neither have given me a need to do so. Quick resume is great on Xbox and moving from old gen to new in terms of saves is seemless, looking at you Death Stranding and Ghost of Tsushima. But other than that I have no clear favourite. PS5 has more exclusives at the moment but....
Only thing with XBox, for me, is the unstable download / update speed. Even though network connection speed test suggests full speed it trickles at c500K and then full speed and then 500k and sometimes just stalls.
And, yes, I have tried all the speedup tricks of closing running apps / games, resetting alternative MAC, reboot. PC and PS5 hit max speed on downloads without fluctuation.
I have tried this wired / wireless, different networks, yet always the same.....