Comment by MayeulC

Usually the pixel density is higher in the center of the FOV though (more distortion due to the lenses on the sides). It's what set the original Oculus apart from existing headsets at the time: cheap lenses and correct the distorsiin in software. It's also a feature, as the actual density is better in the center :)

I do wish they used micro-LEDs for that kind of display though. I guess that they could be manufactured at the same time as a metamaterial acting as a lens sitting on top.