Prevent the error code XR_ERROR_GRAPHICS_REQUIREMENTS_CALL_MISSING when lauching a Unity game with a per-game installation.
Tested with a HP reverb G2 with beat saber and the demo of Cloudlands : VR Minigolf (also unity).
It only works with a per-game installation for me, if I do a system-wide installation the games just sit in the background and don’t launch in the headset.