The System Map is just scrolling.This i a more interesting aspect. At least in my eyes much more valid than many other concerns. But i am curious, as i don't play in VR: is there a difference between the FSS, the system map and the galaxy map in this aspect?
Both Galaxy Map and FSS require rotation, the GM does translation in 3 axes as well. This can disorientate some people in VR and in extreme cases cause nausea.
Personally all 3 interfaces could be significantly improved for VR, but they "work" well enough. In fact of the 3, the worst is the System Map - it is SOOOO SLOW in VR. The main reason being that it's zoomed in to start with and that it only uses digital inputs for scrolling. Adding a "headlook" cursor to these screens would -hugely- increase usability. For example, with the cursor in "headlook" mode as you look around you highlight things. Clicking some button would "select" that thing. Ditto with panels etc - as you look at them, they activate. No more weird fiddling about trying to navigate multiple layers of screens and menus using a couple of mapped buttons. Might need a hotkey to toggle "headlook cursor" though in order to play nicely with VA macros etc.
But ultimately I don't have an issue using any of them in VR although all of them are much better in "pancake mode" (feels weird to call it 2D since it's 3D graphics being displayed, but anyhoo).