Valve splits SteamOS into separate x86 and ARM builds

Valve has quietly restructured SteamOS into two versions: an x86 build optimized for the Steam Deck and Steam Machine, and an ARM build targeting portable devices, Android handhelds and VR platforms. The split broadens hardware compatibility but complicates updates and game support across both architectures.

• x86 SteamOS targets Steam Deck, Steam Machine and gaming PCs
• ARM build is aimed at Android handhelds and VR platforms
• Valve must maintain updates and game compatibility for both architectures