I've had this problem for years and it goes back to PCARS2. The tires behind the banners (the Taco ones are the worst) will clip through and flicker when in VR. I've got a G2, but I'm pretty sure that it did it when I was running Oculus stuff. It's done it on a 2080Ti, a 3090Ti, a 4090, a bunch of different CPU's. It didn't matter if it was SteamVR or OpenComposite (which I'm running now). I don't ever see anyone talking about it so I'm wondering if there is some setting or something I got wrong.