SteamOS
SteamOS is a fork (modified version) of a Linux distribution (distro) built by Valve for its Steam Deck handheld, previously based on Debian but switching to Arch Linux when the portable device launched in 2022. Its UI is practically identical to Steam's "Big Picture" mode, designed initially to simplify PC gaming on large-screen televisions, but it can switch to a traditional desktop UI based on KDE Plasma.
However, it's now optimized for various screen sizes and focuses on supporting controller inputs rather than a traditional mouse and keyboard. While SteamOS is still primarily built for AMD hardware, starting with the Steam Deck and recently expanding to the Lenovo Legion Go S, it can be compatible with NVIDIA and Intel Arc graphics with mixed success.
SteamOS differs from Windows 11 because it is immutable, meaning the user can't modify or overwrite its core system files. Plus, while Valve's Proton translation layer can attempt to run any game or application designed for Windows, its stability is never guaranteed, and some core systems like anti-cheat software still suffer incompatibility — rendering some multiplayer games unplayable.
Latest about SteamOS

Top 5 plugins for Steam Deck and Bazzite handhelds in 2026
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Handhelds Decky Loader unlocks powerful plugins for Steam Deck and Bazzite handhelds. This guide highlights the five best plugins that improve performance, usability, and library organization.

California wants age verification in every OS — good luck with Linux
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Windows California’s Digital Age Assurance Act requires all operating systems, including Linux, Windows, and macOS, to add age verification at account setup.

Steam Deck just turned 4 years old, and Valve's near-future looks bleak
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PC Gaming Valve's Steam Deck handheld is facing shortages triggered by a component crisis, leaving its upcoming Steam Machine PC in an ominous position on pricing.

NVIDIA starts listing jobs for Linux gaming with Valve's Proton in mind
By Adam Hales published
NVIDIA NVIDIA job listings show the company hiring for Vulkan performance and Linux graphics roles, signaling growing interest in Linux gaming as Proton and SteamOS continue to mature.

Bazzite and Windows dual boot on handheld PCs
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How To This guide explains how to dual boot Bazzite and Windows on Xbox Ally and other Windows handhelds, combining a SteamOS style experience with full Windows support.

Steam Deck OLED stock is drying up worldwide — here’s what that could mean
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News Steam Deck OLED stock has vanished in some markets, while Europe still shows availability, fueling discussions about supply pressures and long term hardware plans

SteamOS is slowly winning over gamers for these four reasons
By Cale Hunt published
Windows Linux and SteamOS are gaining users, especially in gaming circles. Windows isn't going anywhere, but Microsoft is paying attention.

What is Bazzite, and is it any better than Windows for PC gaming?
By Ben Wilson published
PC Gaming Learn about this emerging Linux distribution and whether it's a threat to Windows. Does it lack too many features to appeal to anyone outside the gaming crowd?
All the latest news, reviews, and guides for Windows and Xbox diehards.


