Shouldn't Windows and MacOS/iOS fall under rule 1?

Yes I know there are ways to configure the OOTB configuration of these operating systems to harden them for privacy. But they're still [absolutely proprietary](https://i.osmarks.net/memes-or-something/absolutely-proprietary.png) and cannot be trusted (for instance, how could you ever be sure the driver for your wireless device isn't sending telemetry to a remote server?)

Yes, many people simply can't use a Linux distro due to the need of specific software, however shouldn't \*switch to a Linux distro if possible for the best privacy-friendly options\* …

canonical debian distro fedora linux mint options people privacy software switch ubuntu windows yes