When comparing SteamOS vs MX-Linux, the Slant community recommends MX-Linux for most people. In the question“What are the best Linux distributions for desktops?” MX-Linux is ranked 21st while SteamOS is ranked 39th.
Ranked in these QuestionsQuestion Ranking
Pro Native graphics processor support
The OS natively supports Nvidia, Intel, and AMD graphics processors.
Pro Streaming service integration (under development)
Valve is in talks with streaming companies such as Spotify and Netflix to bring their features to SteamOS.
Pro For entertainment, it just works
What media center software do for videos, it does for games (and later videos).
Pro Supports non-free drivers
Pro Easy to use
Pro No systemd
Pro Easy install
Pro Based on Debian
Pro Good MX Tools and Package Installer
MX Linux comes with its own set of tools called MX Tools, designed to make life easier for users.
Pro Very stable
Con Not built around the desktop experience
SteamOS is, first and foremost, meant to act as a gaming console - it doesn't ship with even some of the most basic applications, such as a file manager or image viewer. As a result, using SteamOS as your primary operating system would require a fair bit of work.
Con Hard to install
If you've installed Arch you're probably fine, but for those used to simple installs like (Ubuntu to name just one) you should prepare some patience, determination, and painkillers. Good news is, it's getting better (it's very young).
Con Remixed debian testing
It's mainly a debian stable with some recompiled/backported debian testing packages.
Con Causes overheating on some hardwares
Other debian based XFCE distros- Xubuntu, Debian XFCE, Devuan leave small footprint on system whereas MXLinux uses too much CPU resources on same system.
Con Installer and configuration tools are different
Installer and configuration tools are different and can take some time getting used to.