In addition to last night's Steam client beta with Steam Runtime container support for the client and that SteamRT3 client now a 64-bit build, Valve also released a big preview update to the forthcoming SteamOS 3.8. The SteamOS 3.8 preview release brings initial support for Steam Machine hardware, various handheld gaming device support improvements, various other Steam Deck updates, improved compatibility with newer Intel and AMD platforms, and its KDE Plasma desktop is now using Wayland by default...