As a VR streamer I have been struggling with the same issues. I have been using my G2 with my Valve Index controllers which means I need to use SteamVR. Because of that I can also use OVR Toolkit and bring in any window on the desktop I want into the VR cockpit. Since I also stream X-Plane in VR this works much better than MSFS but it does work. My system is a i7 9700K @ 4.6 and a RTX 2080 Ti but would buy a RTX 3090 if I could put my hands on one. Good luck in your quest.