Valve's Linux-based SteamOS has moved well beyond the Steam Deck this year. With the release of SteamOS 3.8 in June 2026, the operating system took its broadest step yet toward third-party hardware, powering devices from Asus, Lenovo, and MSI, alongside niche handhelds from OneXPlayer, GPD, Anbernic, and OrangePi. GamingOnLinux called it "one of the biggest upgrades yet," and the numbers back that up: controller input latency dropped from 5–8 milliseconds down to just 100–500 microseconds, a leap that matters most in fast-twitch genres like shooters and platformers. Tech Insider + 2
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The update wasn't only about handhelds. SteamOS 3.8 also marked the OS's first official support for Valve's living-room console, the Steam Machine, which shipped on June 29, 2026. Existing Steam Deck owners benefited too, with restored Bluetooth wake on the LCD model, improved Wi-Fi on the OLED, and the ability to wake the device using a connected Steam Controller.
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Perhaps the most consequential news is strategic rather than technical: Valve has confirmed it's now targeting official SteamOS support for all AMD-based PCs, with NVIDIA compatibility promised by the end of 2026 as well. Since SteamOS 3.8, users can even build their own DIY "Steam Machine" using off-the-shelf parts. That's fueling real conversation among PC gamers about ditching Windows 11 altogether — though the OS still lacks dual-boot support and installation remains trickier than a typical Linux distro, and NVIDIA compatibility today still requires manual tweaking.
With Windows licensing costs eliminated and Valve investing heavily in desktop-hardware compatibility, 2026 may be remembered as the year SteamOS stopped being a handheld niche and started competing directly for the PC gaming desktop.