I can confirm that this .apk file doesn't work on Quest 2.
Unfortunately the current .exe download didn't work on PC either. If you're building and uploading a Unity game, then please make sure you include all the files/folders in your build directory (except for the ones that end with DoNotShip). Zip them all into a zip file and upload that. It won't run with just the .exe file by itself. If you need more help with the packaging, lemme know.