– Which games require Nintendo Switch Online to access online play?
– Nintendo Switch games such Splatoon™ 2, ARMS™, Mario Kart™ 8 Deluxe, Mario Tennis™ Aces, and Sushi Striker™: The Way of Sushido, will require a Nintendo Switch Online membership, but other games will vary
If this ends up meaning most or all 3rd party games don't require online pass to be mandatory. Oh boy...
They're probably talking about Fortnite ;)