We've reached a sort of gaming singularity where nearly every video game can be run on any hardware you choose or be streamed over the network to a thin client. PlayStation and XBOX consoles are basically dedicated gaming PCs that can only run Sony or Microsoft's version of Steam. DirectX is losing ground too thanks to Proton and Vulkan, so Microsoft won't have the last laugh there either. If Valve controls the store you purchase games from, the software which runs the games, and the operating system running the software, they are an ODM contract away from becoming Sony's PlayStation division, and look where they are now.