OXR is a developer toolkit. It enables you to tweak the settings for your VR - e.g. enabling reprojection and render scaling. This is not spyware, malware or dodgy at all, but is a very helpful tool in setting up your VR to best effect. As @CptLucky8 says in the post I;ve linked below:
FS2020 is using OpenXR (OXR), a VR Application Programing Interface (API). It is independent of Windows Mixed Reality (WMR) or SteamVR (OpenVR) and Its value proposition is to make any application instantly compatible with any headset as long as there is an OpenXR driver for it.
In order to get the most of the FS2020 VR experience, you must download and install the following:
OpenXR Developer Tools for Windows Mixed Reality from the Microsoft Store
I suggest you have a look at this very detailed post/thread which may be very helpful in getting your VR working well. This will also help to explain what OXR is and why it will really help you.
@OSalvadorO - there is an option on OXR to disable the latest preview version - try deselecting that (as I hve below) and it will likely solve your blackout issues.
I use the Reverb G2 too, with WMR and OXR and it is excellent.