Apple started hiding the traffic of its own Mac apps
medium.com
medium.com
As more and more iOS and Mac apps leverage iCloud to remain in sync, mobility use cases are increasingly expected to “just work” by iPhone and iPad users, but it’s the under the hood things on MacOS that users don’t know the names of that can really send a user sideways.
This is suggested by the tools themselves which in recent years as the OS became more “online”, kept making it easier and easier to try to carve these necessary-enough services back out from the rules.