You can find what titles are mac/android/windows/Linux compatible by using the filter function in the store page.
Mac: https://store.fakku.net/collections/games/platform_mac
Windows: https://store.fakku.net/collections/games/platform_windows
Linux: https://store.fakku.net/collections/games/platform_linux
Android: https://store.fakku.net/collections/games/platform_android