If you actually care about that—as opposed to complaining for the sake of it—you shouldn’t be allowing new software to establish outgoing connections without your consent anyway.
So if you actually did care, you the user would know because your operating system alerted you.
Nagging everyone to comply with your interpretation of “the right thing” might feel good to you, but it’s actually a very weak and porous form of security theatre.
OK, are there any standard Debian packages that do this?
As I recall, it was a huge upset when Ubuntu app search hit Amazon by default.
And when you install Debian, it asks whether you want to participate in the packages survey. And the default is "no".
Edit: And just to be clear, this isn't about me. I assume that stuff will leak my IP address without warning, so I only connect via nested VPN chains. Or when I really care, that plus Tor.
This is about people who trust stuff that they use.
A popular solution has been available for MacOS for sixteen years (Little Snitch) so if something comparable isn't already available for Linux—the operating system of the internet—that's pretty embarrassing.
So if you actually did care, you the user would know because your operating system alerted you.
Nagging everyone to comply with your interpretation of “the right thing” might feel good to you, but it’s actually a very weak and porous form of security theatre.