Use your favorite Mobile Emulator, whether it be BlueStacks, Memu, or whatever. If you can't find game in your region's play store, search for APK ver., but I don't know how updates would work from there.

I downloaded QooApp APK for my emulator, it acts like a play store for JP / CN games (that's how I got AZLane JP).

Haven't logged in to FKG yet, looking all these rewards, I'm pretty excited, heading over there right now...!