He states a TV or laptop.
In that instance, you would make the TV the primary display for the PC, and then the app would copy the output of the game.
For a laptop, the same thing...
If they want a 3rd monitor with a mirror.. besides having a beefy graphics card, you would just set that to mirror a display.
OR... you can setup a VR stream and display it on countless monitors with a video capture device. (trickier but possible)
In the end.. the answer is YES.
You just need to go for it and tackle the smaller technical details.