Not just Proton: Getting to know Valve’s new SteamOS compatibility layers
Summary
Ars Technica explains Valve's SteamOS compatibility push, detailing two new layers: FEX (ARM x86 emulation) and Lepton (Android APK support). The piece covers how these layers extend SteamOS to ARM devices and the Steam Frame, enabling more games and apps to run without native Windows ports, and places this within Valve's broader Linux gaming strategy.