Was just checking out a review of both hardware, and this is just an extraction of course but I couldn't help but notice this:
"First: Sony’s ambitious claims about the PS5’s load times aren’t exaggerated, as far as I can tell. Assassin’s Creed Valhalla went from the main menu into the game in less than a minute; fast travel took less than 10 seconds from point to point. However, while the Xbox Series X took longer to load the game initially (almost a minute), fast travel time was exactly the same.
Gameplay-wise, if you handed me an ambiguous controller and put either the PS5 or Xbox Series X version of Assassin’s Creed Valhalla on a screen in front of me, I honestly wouldn’t be able to tell the difference. Both systems ran the game at 4K at 60 frames per second (although I understand that the 4K is probably upscaled in both cases), and neither one seemed to have any major difference in animation fluidity, lighting, etc."
According to this chap, on this game at least there's no discernible difference in the visuals or performance of the game despite Xbox's better hardware, however PS5 has quicker load times despite being on lesser hardware - so already that's raising red flags for me, those slower load times are going to get worse to the point of being annoyingly slow load times in a couple of years no doubt if history is anything to go by.