Idk why people keep requesting virtual desktop and big screen beta. Those are already supported by steamvr, which means they already work on pimax.
The reason we want pimax sdk level vorpx support is because we want that 180 fps support for flat games.
That means you can set your flat games options to run at 180 fps, and those frames will all draw to the hmd. All 180 frames dispersed between the two eyes.