This seems to be a recurring issue with a lot of Quest2 users - Sometimes, clicking the stick while moving it helps. I think when I switch over to Unreal 5 this may be fixed. Has only started happening around the V49 update.
I do recommend trying to re-calibrate your controller deadzone, if possible on Quest platforms - UE4 and the new updates don't play the nicest. My next experience features zero movement requirement and only 2 buttons on whichever controller you prefer. Thank you for enjoying my games!