>>386825286
>>386825875
>image jumps between eye sides as he moves horizontally around
i'm pretty sure this just just a tuned version of a 3ds display, which is a tuned version of 3d images you could find in bags of chips somewhere around 2000

but i could be wrong. either way, it seems to be relying on two images for two eyes, which is what your headset is doing by default. Anyway, it doesn't mention anything about variable focal distance per parts of image here:
https://electronics.sony.com/more/spatial-reality-display/p/elfsr1

so i'd assume it's not doing that, it's just tracking your head to generate parallax effect + does 3d like 3ds except somehow it manages to do that consistently regardless of angle