I start to have my doubts on VR Flight Sim Guy’s expertise, I get the “overhyped” feeling in the latest videos, just like other youtubers. I have the 3080 and 5900x, I manage to get around 30fps (going up and down), but my feeling is, you better wait for Asobo and Nvidia to optimize their software, feels to me like a lot of potential is lost somewhere, and by then we might have something like a 3080ti as well.
I think I found my best setting yesterday with great clearity and mostly over 30fps with reprojection on, and most stuff on high or even some on ultra (cockpit, volumetric cloud, water, reflections). While I went down with the resolutions (OXR 65%, TAA 80%, LOD 100%) I went up with AF (8x), Texture Super Sampling (6x6) and Texture Synthesis (High), and the picture looked to me almost as crisp and sharp like the 100%, and like 95% with the blue reprojection window (when I turn my head for a second it goes down, but overall smooth and sharp).
So I recommend, try to get the sharpness not primarly by the resolution settings only.