How to download Fortnite on Android without Google Play Store

A step by step guide on how to download Fortnite on Android without the Google Play Store, still using the safest and authentic methods.
It's no secret that Fortnite has been removed from the Google Play Store and App Store right after publisher Epic Games violated the policy on direct payments for both the stores. Epic Games announced

Android warning - Do not delete Fortnite from your Android

Fortnite Beta Is Now Available for All Android Devices « Android

Why Can't I Play Fortnite on iPhone or iPad? “Fortnite No Longer

How do you play Fortnite on your mobile phone? - Coolblue

How to Download Fortnite on Android Phone - Driver Easy

Google Play Store Pulls Out Fortnite Too

How to speed up Fortnite updates on all devices

Fortnite players using Android phones at risk of malware

How To Install Fortnite On Android Without Using Google Play Store

How to Get 'Fortnite' on Android Without Google Play