You don't need a VR headset to play a WW2 flight game because there are literally dozens, if not hundreds of them. War Thunder is a pretty good place to start and it's free.
i had this game on cd like 20 years ago they made this for vr now. I do remember it looking very pretty way back then this was the most visually amazing for it's time and the game was fun!
https://youtu.be/kzasCugNXws