You don't understand what VRR does do you
It doesn't stop the game losing frames, nobody claims it does. What it does is force the TV refresh to match the GPU output, this eliminates any screen tearing and smooths out all the judder.
You may still feel some controller latency but since the vast majority of dips are brief you probably won't notice that and you won't see any judder on screen.
As I've said before an easy way to see this is the Italian track on Dirt 5, without VRR you come around one corner to a long straight and you can see the framerate stutter, turn on VRR and it's totally smooth. It makes a massive difference to the like of Valhalla too.