Well, the 5600x has increased my frames by quite a bit, on flat screen at least, compared with my 3600xt. I can get like 70-80 fps with the preset High settings, 3440x1440p, and a lot of clouds (though I haven’t tried in a heavily urban area yet). It would be a great thing if I were still really into monitor simming 
However, in VR it is still a horribly stuttery mess, even on low settings, (and I’ve got an RTX 3080) so I’m waiting on updates in MSFS or Nvidia drivers before I really get back in to MSFS. That and the constant terrain spikes all over the place.
Oh well. Back to the combat sims for a while until these two things are fixed.