With this programme you can import a desktop windows (aka a browser with IL2mission planner running) into a VR games.
I’ve been watching and reading about this to see if it pans out before mentioning it here, but it looks like it does. Its also movable in game. Cons are it costs $15 and there is some performance hit.
One of the testers said how useful it was and managed to get back to base after a low level furball using it.
https://forum.il2sturmovik.com/topic/31005-ovrdrop-feasible-map/
https://forum.il2sturmovik.com/topic/31293-game-navigation-vr/