Steam is incredibly intrusive as soon as you actually want to own your games. For example, Rage runs perfectly on Linux through Wine because the engine is OpenGL. Too bad you cannot actually download it on the Linux steam client because its not platform native and supported in client. And because the game has the Steam DRM, you could not run it on Linux anyway without running it through Steam in Wine.

So Rage has a festering tumor of the Windows Steam attached to it for no reason but to force down my throat how I don't actually own this game.

Same applies to every game on Steam that runs fine in Wine but that you cannot download, and often cannot run, without running Steam through Wine as well.