Valve says Steam for Linux is not currently supported on ARM-based hardware. The statement followed a reported AYN Odin 3 issue with AV1 decoding in Steam Remote Play. It defines Valve's support position; experimental community installations are a separate matter.
Valve's ARM support position
The statement came in connection with GitHub issue #13689, which concerned an ARM64 Steam Remote Play client and AV1 detection through V4L2, Linux's video interface. The issue is marked as a duplicate. Valve's statement addresses official support for Steam for Linux on ARM hardware.
That distinction adds context to NeoTeo's earlier coverage of Valve exploring broader SteamOS support for ARM. Exploration and device-specific experiments do not amount to general official support.
The AYN Odin 3 report involved AV1 decoding
The reported setup used Valve's public-beta Steam Client for LinuxARM64 on an ARM64, Fedora-based distribution running on an AYN Odin 3. During Steam Remote Play, HEVC decoding worked through V4L2, but Steam did not expose AV1, even though the Qualcomm decoder reported support for it.
That describes a reported behavior on this device and setup. It does not identify a cause or establish that other ARM devices have the same issue.
Experimental installations can produce mixed results
Community projects describe Steam installations and selected game tests on particular ARM devices. Some reports say selected games launched through Proton; others describe low frame rates, login trouble, overheating, or games that would not launch. Reports on particular beta devices also mention sound dropouts and control problems.
Those results are specific to their devices, builds, and games. They show why an experimental installation is different from a supported platform, without promising a Steam Deck-like experience across ARM handhelds.
