Fortnite crossplay (Nintendo Switch, Xbox One, PC, Mac, Mobile) confirmed, Sony blocking PS4

Is Fortnite cross-platform?

Sony enabling Fortnite cross-play for PS4 against Xbox and Switch - The Verge

How to do split screen on Fortnite Xbox

Fortnite: How to Play Split-Screen

On Fortnite Xbox you can't play Fortnite without Xbox Live Gold now I can't play with my Xbox friend (I'm on PS4) P.S The photo is from a video : r/FortNiteBR

Fortnite adjusts cross-platform play to separate out Switch and mobile users

Sony enables Fortnite cross-play between PS4, Xbox One and Nintendo Switch

Epic Games briefly enabled cross-play on Fortnite between PlayStation and Xbox

Fortnite: How to Play Split-Screen on Xbox One and PlayStation 4

Fortnite split-screen explained: How to play local multiplayer