@Silvan-CIG I have an HP Reverb G2. It's a Windows Mixed Reality (WMR) headset. Works great, but I've learned that SteamVR is a bottleneck and hurts performance in many games. Recently I followed the advice in this thread: https://forum.dcs.world/topic/295123-openxr-guide-for-wmr-headsets/ and got a big performance boost in DCS. Using OpenXR in Il-2 I get the maximum 90 frames/s possible! My specs are not off the charts (5600x, 6700xt), so OpenXR has made a big impression on me. Are you intending to use the OpenXR API for Star Citizen? Or something else? From what I gather it can be used for other types of VR headsets in addition to WMR. Some users have complained that DCS could use openXR natively and save us the trouble of downloading 3 different apps to get it working!