I tested the v27 Oculus PC app beta yesterday, and it does indeed appear to fix the frametiming issues I keep mentioning in my posts here. To be clear: you can now leave the Nvidia driver settings at their default values for V-sync, and MSFS (and X-Plane too) will now reach full refresh frame rate if you’ve got the performance to do it, and ASW locks to stable intermediate values as it’s supposed to. This fix does make everything feel more like it’s supposed to, although it still isn’t quite up to the low-latency responsiveness and fluidity of my old Rift CV1 headset.
That’s the good news. The bad news is the v27 beta has indeed broken higher refresh rates, so no matter what you choose, it’s stuck at 72Hz. I reported this to them, and I’m sure others have too, so hopefully it gets fixed soon.