I can see it is a 820 MB .apk file and expected things to take a while to load, but I think there's some kind of issue happening with the scene loading. If you find a fix for the scene loading issue, let me know and I can test it to see if it works. I'm using an Oculus Quest 2.
The 1st time I tried the game, I pushed the "push button when ready" button on the first scene and it went to the black screen, and never loaded the next scene. I waited a whole minute in the darkness while the music played, but it never loaded - the music just continued looping in the darkness, and I gave up.
The 2nd time I tried the game, I was able to reach that the second scene, pushed the button ("push button to flee"), it faded to black, but the next scene never loaded. It just kept looping the music in the darkness.
The 3rd and 4th time I tried - it couldn't even reach the second scene.