Do I expect a Steam purchase to be available on Wii U, Switch PS4, etc.? No (and at least in my case, the games usually don't exist on those platforms anyway).

Do I expect a Steam purchase to be available on Wii U, Switch PS4, etc.? No (and at least in my case, the games usually don't exist on those platforms anyway). What I do expect is for it to be available anywhere a Steam client is, and indeed almost every game for which a port exists can be used on any Windows, Mac, or Linux computer (with different processors, GPUs, etc.) for no additional cost. Valve has set a standard for the behavior of downloadable games across platforms, and it's totally understandable that customers would feel "ripped off" by Nintendo's approach.