It's shocking how much worse the Xbox One version looks. Haven't watched this separated footage yet but I already noticed it during the complete video. Normally you don't even see a big difference with multi platform titles unless you observe Xbox and PS versions under the magnifying glass. But here it is for some reason very visible. On Xbox It's even blurrier, overall worse textures, no anisotropic filtering whatsoever. To me it looks as if the already dialed back lighting is also even worse here. Some scenes like the tomb scene or the chocobo race or Duscae region look pretty bad. There is also hardly any grass in Xbox Duscae. It's just sandy planes with a few bushes here and there.
I feel bad for Xbox users... :/