Summary:
- Valve is preparing to add ARM64 support to Proton, its compatibility layer for running Windows games on Linux. This suggests an ARM-based Steam handheld device is in development.
- Proton's ARM64 support will allow Windows games to run on ARM-based hardware, such as the rumored Steam handheld, which is expected to use an ARM-based processor.
- The addition of ARM64 support to Proton is a significant step towards the release of a Steam handheld device, which could provide a portable and powerful gaming experience for Linux and Steam users.