SteamOS

vs

Ubuntu MATE

Kali Linux is a Debian-based Linux distribution aimed at advanced penetration testing and security auditing of computer systems and networks. Kali Linux contains several hundred pre-installed tools which are geared towards various information security tasks, such as computer forensics, penetration testing, reverse engineering and security research.

MX Linux is a Debian-based Linux distribution created by the MX community. The operating system is a cooperative venture between antiX and MX Linux communities. MX Linux desktop environment is based on Xfce and provides a fast, low-resource and friendly experience. It includes modular core components for the full functionality expected from a modern desktop environment. A collection of powerful and handy “MX Tools” that cover a range of actions from boot options to repository management. A fast package manager that can install from Popular Applications, MX Test Repo, Debian Backports and Flatpaks.

Garuda Linux is a free and open-source Arch-based Linux distribution. The mission of Garuda Linux is to provide a stable and easy to install version of Arch Linux. Garuda Linux supports the following desktop environments KDE, GNOME, Xfce, Cinnamon, MATE, LXQt-kwin, Deepin, Wayfire, BSPWM and i3wm and can easily be installed with the Calamares installer. On top of that, Garuda Linux provides GUI's for package management with Pamac, kernel and driver management with Garuda Settings Manager, GPU switching for Optimus laptops with Optimus Manager, manage common tasks with Garuda Assistant, and a GUI for installing curated gaming software called Garuda Gamer.

Ubuntu Budgie is an official community flavor of the Linux distribution Ubuntu featuring the Budgie desktop. It combines the stable and thoroughly-tested Ubuntu core with a modern, lightweight and traditional-looking desktop developed by the Solus project. The desktop is adaptable to any device, keeping them fast and usable. 

A light-weight Linux distribution intended for both new and experienced Linux users. Xubuntu comes with the Xfce desktop environment by default which use fewer system resources than the default Ubuntu GNOME desktop. Xubuntu was officially released on 1 June 2006 and has seen active development since. It is openly maintained by the community and released free of charge under the GNU General Public License.

Lubuntu is a free and light-weight Linux desktop distribution developed by the Lubuntu Community. The distribution combines the stability of Ubuntu with the faster LXQt desktop to provide a snappy operating system for low-spec computers. Lubuntu has been in active development since 2011 where it was first introduced with the LXDE desktop environment.