Can you though? LS now operates in user mode, which means it can no longer block traffic sent to Apple via a kernel thread.

It’s all a bit pointless though, as a LOT of hardware now calls home as well, and it doesn’t matter what OS to run on top of it unless you’re running something like TempleOS. Vanilla Linux is not going to protect you by itself. And if you’re using a repository system for software updates, that’s going to be reporting your software too — and many web browsers also report the URLs you go to (or even consider going to) and what extensions you have loaded.

But that article points at a solution for macOS users: it’s the certificates that are being checked. Any non-bog-standard software I run is not notarized or signed, and it functions just fine and has nothing to send back to Apple’s servers. First time I run it I need to right click and select Open to run the app, and this bypasses the entire signer system.