Depends on how one frames it. It's not the Stallman-defined "GNU+Linux" pureblood OS, but it nevertheless is built from a modified version of the Linux kernel.

And like any OS it can be made private and secure with the right components...or it can be cracked open like a data-farming egg without them.

I guess I can just take the low-hanging fruit and invoke Ubuntu as an alternative example, which was once something of a Linux entry point but has become more than fine collecting user data.