This rumour harks from way back in 1.3 when a sudden and denied graphics nerf hit.
However, you will notice that the nerf hit in June whereas the XBOX version was released in Nov. 2015.
Detail
Planets:
FDEV to this very day deny that the nerf had anything to do with optimising for the XBOX.
All I know is that I was running 780 x 2 in SLI at the time on a 4k monitor and the change was as sudden as the "beige plague"
I can't say that these were done to improve XBOX framerates, and a signed agreement made with Microsoft preventing them from explaining the limitations...
Tinfoil hat territory is soon reached and I'll stop there, at the gate.
However, what I can say as an ex-dev is that sharing a release between two platforms, even both based on windows IS GUARANTEED to splinter resources. So we can definitely say that the XBOX version is at least partly responsible for a slowdown in development of ED, if not directly responsible for nerfing the graphics.
The game is developed on PC's...
Developed on PC's what? You're missing a word there, mate.
On PC's software? On PC's platform? On PC's solidly defined abs?