You are being naive. An Apple device makes dozens of network requests every minute or so to Apple. It is neigh on impossible to verify what is being requested or sent. Also unplugging the Internet and verifying that something still works does not mean the app won't phone home behind your back when it can. These things are designed to fail silently.

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Danox 3 hours ago | parent [-]

Download use Little Snitch or

https://alternativeto.net/software/little-snitch/

https://www.g2.com/products/little-snitch/competitors/altern...

There are many alternatives for trying to find out what’s going on. If you don’t want to bother, and most people don’t, well, what else is there to say?

It is generally a good idea to know what software is phoning home, if you can pinpoint it.

If you have any software recommendations, I’d be happy to know.

	▲	drnick1 an hour ago \| parent [-]
		It's more complex than that. LittleSnitch or other application firewalls won't help when programs like package managers legitimately need to access the Internet. And figuring what what is being sent would require decrypting the traffic. There is no easy way to figure out if Apple or some rogue app is siphoning off your home directory.