All those devices basically send thumbstick tilt data to steamvr or something as leg movement input I think, so technically vorpx lets you rebind vr controller input as gamepad or keyboard input and in theory could work as desktop game controls. I think Ive even seen people on one of those play battlefield or something way back.
Only thing you have to understand vorpx doesnt convert any game in full vr, there are some with enough tricks to make it look like one, but its still limited and it wont be as good as full vr shooters, for example – no support for vr controllers to move your gun, its stuck to your face like on a monitor.