I’m aware of several flight simulators that support VR headsets. For those who don’t get queasy using VR in a simulated aircraft, it is an excellent benefit:
In real life, many tasks like flying the landing pattern or joining a busy area of lift require constantly scanning both the instrument panel and outside the plane, at various angles.
If you use a standard monitor, you’re teaching your hands to push buttons that switch the direction of view. If you use VR, you teach yourself to look around with your head.
If you are flying for the purpose of training yourself to fly in real life, or practising skills you’ll use in a real aircraft, the latter is -referanke, all other things being equal.