IF you really want to be pedantic about it, utilize an egress firewall policy, whether on your machine, or your router. For MacOS, LittleSnitch or RadioSilence.

IF you really want to be pedantic about it, utilize an egress firewall policy, whether on your machine, or your router. For MacOS, LittleSnitch or RadioSilence. For Linux/BSD, setup your firewall of choice to do some filtering. Yes, it will take alot of effort to setup, and some effort to maintain, but it helps.