Vanilla OS
Vanilla OS, a fixed-release distribution based on Debian (formerly Ubuntu, prior to version 2) with the GNOME desktop, is an immutable operating system. The core parts of the system are locked down to prevent unwanted changes and corruption from third-party applications or a faulty update.
VS
Exton Linux
Exton Linux is a set of over 15 Linux distributions based on Arch Linux, CRUX, Debian, deepin, Fedora, openSUSE, Puppy Linux and Slackware Linux. They are designed to be lightweight, fast and easy to use.