I agree with brookst. The fact that most Apple first-party software only works on Apple devices is a given, and any time you call an app “collaborative” it’s a

I agree with brookst. The fact that most Apple first-party software only works on Apple devices is a given, and any time you call an app “collaborative” it’s a given that we’re talking only about the devices which can run the software. What are we supposed to call it when they add collaboration to one of their apps? “Adding walled garden” is nonsensical, because to whatever extent it’s a walled garden, that was already the case before adding collaboration.