https://www.techradar.com/news/fortnite-for-android-is-going-to-bypass-the-google-play-store

There’s no Fortnite for Android release date yet but when it does launch , you won’t find it among the game apps in the Google Play Store, Epic Games officially today. 

Instead you’ll have to download Fortnite for Android from the company website and sideload the game onto your Google-powered mobile devices.