Splatoon 2 multiplayer will go from free to paid with Nintendo Switch Online - Polygon
The Online Lounge in Splatoon 2 has now been officially discontinued. This is the menu that appears when trying to access the option. All other modes continue to remain available. : r/splatoon
Splatoon 2: Everything in the Nintendo Switch Online Expansion Pack | iMore
Nintendo Switch: How to Use the Nintendo Switch Online App to Play Splatoon 2 with Friends « Smartphones :: Gadget Hacks
Nintendo to Debut 'Nintendo Switch Online' iOS App Alongside Splatoon 2 on July 21 - MacRumors