The thing about Pokémon Unite at the moment: while there are some minimum hardware specs listed for the iOS version of the game, the Android version only specifies "Android 4.4 and up" as a minimum requirement. But some users running Android 10 or 11 may find that the game doesn't appear the Google Play Store when they search for it, and thus they can't download it. This is because the device they tried to use is incompatible, and they did not know this since the developer did not provide any minimum requirements besides "Android 4.4 and up". --- But to be fair, the game's port to iOS and Android is still brand new as of the time of this post. The developers may be able to broaden compatibility to more devices over time.