On your eligible iPhone or iPad\n\n Open the App Store. Tap or click Apple Arcade. And make sure your device is running the latest version of iOS, iPadOS, tvOS or macOS. Choose Redeem 3 Months Free to activate your Apple Arcade subscription.
There is no multiplayer. There never will be multiplayer. The developers have officially stated in the official discord chat for everyone to not bother asking about multiplayer. Y'all know it a'int a game w/o MP..
As far as the two original games go, Overcooked 2 doesn't have cross-platform multiplayer. PC players (across Epic Games Store and Steam) can play together, but that's it.