For me on the same computer specs the G2 ran 100% better! on i7 6700k, 3070, 32 GB.
Q2 had constant stutters and glitches, tried every single tweak on this forum. Link cable, OTT, etc, airplay, Virtual Desktop with a dedicated new WIFI6 router 2 feet away etc. Spent more time tweaking than flying. Actually had to put Q2 down for a few months while the sim improved performance cause it was not playable, and I can not go back to 2D Potato mode.
Plugged in the G2 and no stutters, and actually had a smooth flight
Sweet spot is a real thing, but honestly after a few flights where the whole thing was not melting and stuttering you dont notice it. There are mods you can do to get your eyes closer to the lenses. Actually I think the new G2 come with the thinner facemask anyway.
Sure the Q2 is couple hundred bucks cheaper, but its not a good buy for MSFS. I would save that 300 and put it towards a better GPU. For oculus VR games Q2 is amazing!
You may have better experience with a G2, def not with Q2 on a 1080