Sony 'confident' it'll find a Fortnite cross-play solution - The Verge
Fortnite' Account Merge Guide: How to Transfer V-Bucks Between PS4, Xbox & Switch
Fortnite: Complete Controls Guide for PC, Xbox One, Xbox Series X, PS4, PS5, Switch, & Mobile - Outsider Gaming
Fortnite tactical sprint | how to sprint on PC, Xbox, PS4/PS5 & Switch | Radio Times
Fortnite blocks you playing on Switch if you've already logged in on PS4 | Eurogamer.net
How To Finally Merge Your Xbox, Switch And PS4 'Fortnite' Accounts Together
Heads-up for Fortnite account going from PS4 to Switch (not sure about Xbox). You can't so you'll be forced to either buy another battle pass or just not play it on switch.
USING MY "PS4 FORTNITE ACCOUNT ON THE NINTENDO SWITCH"- NEW! CROSSPLAY IS OUT NOW - PS4 AND SWITCH! - YouTube
Fortnite – PS4 vs. Switch Frame Rate Test & Graphics Comparison - YouTube
Xbox Head Phil Spencer and Nintendo President Comment on Sony's PS4 Fortnite Crossplay Stance
Fortnite Switch: How to connect with Xbox One players and play Fortnite on the Switch | Gaming | Entertainment | Express.co.uk