Can I play Fortnite on Steam Deck?
No, you cannot play Fortnite on Steam Deck, directly.
As a workaround, you can use Xbox Cloud Gaming services on your Steam Deck to play Fortnite. For details on how to do this, check out this page: Play Fortnite on Xbox Cloud Gaming (Opens in a new tab)
For Xbox Cloud Gaming support, please reach out to Xbox support here: https://support.xbox.com (Opens in a new tab) (Opens in a new tab)