As I understand it, due to lens setup this shouldn’t actually be the case. Iirc the view for say a Valve Index ends up at something like 60cm.

Here’s some actual problems that are harder:

* while your eyes remain accommodated to focus on that distance, it no longer corresponds with the way they track objects close or far away, by pointing closer together etc

* lack of correspondence between movement on screen and in the real world (usually translation, rather than rotation which tracks head position) for non-roomscale content (i.e. games where you move around larger scenes) causes motion sickness.