In Season 1 Episode 4 of The Makanai: Cooking for the Maiko House , you can see Momoko playing Splatoon from 11:43 to 12:24. I can tell that it's not Splatoon 1 since she's playing on a Nintendo Switch and because Li'l Judd is on the results screen. I can also tell it's a private 1v1 match based on the lobby screen.
Is Momoko playing Splatoon 2 or 3?