I'm using an Oculus Quest with Oculus Link, and to get it to work I had to:
Launch the Oculus App, activate Oculus Link in my Oculus Quest headset, open up SteamVR from within the Oculus Link environment within the Quest, open up a virtual desktop from the Oculus environment, open up a Windows Explorer, navigate to where I unzipped the Luna_VR.exe, start it from there, then switch back to the SteamVR app