I mean the headline is a bit odd no? Any Linux distro or FreeBSD install is privacy preserving if you disable any telemetry. Roll your own distro and have full control over what is installed and phones home. Something like Nix maybe.
PS: I wrote a fair bit of page, and most of the issues are what most people would consider minor. There are also mitigations available, opensnitch for example is great for network based privacy violations.
Just FYI many of the "Source" links lead to a 404
Thanks, I think we will have to change the approach used there. Probably linking to the codesearch.debian.net site instead.