Qubes OS Begins Commercialization and Community Funding Efforts

I find annoying when a project identifies itself as an "Operating System" that I didn't know about... until now, because I suspect that it may be a Linux distribution and not a new OS, but I can't tell from the main page.

I understand why (tying to avoid the "yet another Linux distro" stigma), but when you go to "What is Qubes OS?" in https://www.qubes-os.org/intro/ ; they fail to mention that is Linux based.

Well, to be fair this one has a FAQ entry: https://www.qubes-os.org/doc/user-faq/#is-qubes-just-another... ; although they try to understate that they use Linux.

If they want me to trust them, they're doing it wrong.