Yes… I am certainly very confused about Sim Update 3 linkage of VR pop-up/text resolution to the 2D PC screen…
It just makes no sense to me. As you say, the update must have been rushed out without checking its impact in VR. Using a Rift S together with v27 and a RTX 2070S running v457.30, I found that I could only eliminate the flashing phenomenon when using OTT to clamp the frame rate to 30Hz. Thanks for your nvidia settings though.