>>415072325
have had my 7950x and 4090 for a few months now and I am also running with 4x MSAA and vrc high settings for the best balance between performance and visual quality. Mainly use pico 4 via virtual desktop with rendering resolution of 2164x2164 per eye, which looks about the same as your reverb g2 too, assuming you're using 100% rendering resolution.
If you have fps vr, you'll notice that the majority of your performance issues are more likely to be cpu bottlenecks. I've compared cpu frametimes with anons with 5800X3Ds, which still beats the 7950X, with a much bigger difference in heavily populated instances. 7950X3D will probably be a non-trivial upgrade path that I am considering.