I'm having similar issues. I didn't run into this much when I had windows 10, but when I did a clean install of windows 11, I have had very little luck getting AFMF 2 to work properly.
All my games show it being enabled, but once enabled, the framerate appears to cut in half and screen tears, but the performance metrics show double frame rate. It's like something is wrong with freesync, scheduling, or some kind of interference. I've tried chill, riva's frame limiter, advanced sync options, turning off my other monitors, DDU on the drivers in safe mode, and ensuring all overlays are disabled.
Sorry I don't have any suggestions, but I just wanted to say I see similar problems with a fresh PC.
