The game doesn't launch and crashes almost immediately at the "detecting optimal graphic settings" screen. It won't let me download the Windows or Google Drive version, even though I thought I downloaded it from the main screen?
The game uses some newer Unreal Engine features which aren't supported by integrated graphics unfortunately. In some cases it works, but it's not guaranteed. What you could try is updating the drivers.
I guess the download buttons only work in the browser. In the app you can use the "Install" button that appears on the bottom right.