OK so in the end it worked for me too… but it was a slideshow for about 5 minutes when I switched to VR and after that, everything started to be smoother and the rest was just great…dunno what’s happening but it worked…I’m 100% openXR, 100% ingame VR and 200% 2d (1920-1080p) if I keep the 4K base resolution, it’s less than 1 fps…
I admit the sharpness is there, it’s WOW!! with the G2.
Kind of excited about that discovery 
my steps
1- start MSFS (steam version)
2- go in settings and set 200%
3- start a flight
4- switch to VR after …
5- major slideshow (5 fps probably for around 5 minutes or more than slowly getting better and better until smooth)
Will test more in the morning… night pilots 
(amd 5600x , RTX 2080, 32 gb)