XSX ran at a slightly higher resolution but actually looked lower resolution in some areas because of VRS that was blurring some textures. Besides even with VRS it was only a small resolution difference advantage. Like when PS5 has the edge, it's almost always by a small margin up to 20%.
Here it's clearly a bug.
"Xbox Series X operates at a dynamic 1800p, while PlayStation 5 tops out at 1584p - and it is visibly blurrier"
Visibly blurrier whilst VRS is practically invisible during gameplay.