As a geeky PPL with a few hundred hours of MSFS time, I'd say I'd be quietly confident of at least not killing everyone in the process.
I come to the flight deck with the advantages of knowing the principles of flying an aircraft, the idea of approach speeds and roundouts and a knowledge that the autopilot would be doing most of the actual flying. Depending on the airfield/kit, landing the aircraft would be a case of twiddling dials, smoothing the landing and stopping the thing from running off the end of the runway
Of course, this would require a pilot on the ground talking to me and providing the experience and knowledge on type. Without that link, anyone would be floundering.