Farming Simulator 22 (FS22) is not officially available as a standalone Android application

GIANTS Software has released specific mobile versions of the franchise that are optimized for Android devices: Farming Simulator 23 (FS23)

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If you want on Android, use Xbox Cloud Gaming (Game Pass Ultimate). For a small monthly fee, you can stream the real Farming Simulator 22 from Microsoft’s servers to your Android phone via the Game Pass app. It is technically "gratis" within the subscription and 100% legal.