Xbox Boss Wants Fortnite PS4 / Xbox One Cross-Play, Developer Agrees - GameSpot

Phil Spencer says he wants PS4 and Xbox One gamers to play together; Sony won't allow it.
In Fortnite, players and their friends lead a group of Heroes to reclaim and rebuild a homeland that has been left empty by a mysterious darkness only known as “the Storm.”

XBOX – DJMMT's Gaming (& More) Blog

Epic makes Fortnite cross-play default for Xbox and PlayStation players

Sony – DJMMT's Gaming (& More) Blog

News - June, 2021

PlayStation 4 and Xbox One cross-platform play switched on in Fortnite, players report

News - August, 2020

XBOX – DJMMT's Gaming (& More) Blog

Xbox Series X out here changing the game : r/halo

EA CEO: Call of Duty Xbox exclusivity would be good for the Battlefield series

For those who keep asking if you need PS plus to play Diablo 4, yes. : r/diablo4

Fallout 76 - Looking Into Crossplay, but Sony is not as helpful as everyone would like them to be

Redfall Review - Half-Staked, Gamespot