But I sure as hell don't want to invest howevermany weekend days figuring out how to make games from other platforms as easy to play as Steam games on SteamOS.
I imagine this is that - give me "download" and "play" buttons that let me run GOG games on Linux, even if the binaries were authored for Windows.
Cloud saves and achievements and all that are nice (and expected from something like GOG), but even just a normal launcher feels essential on Linux.