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Vulkan and OpenGL are provided by drivers, not by the OS. It's a perfectly normal situation, what else _could_ Microsoft do?

> OpenGL compatibility pack

This is using the Mesa Gallium state tracker with a DirectX backend. It's not meant for vendors with a native OpenGL driver.

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Fair enough, but I guess my point is more that, technically speaking, Windows and MacOS are actually identical in their OpenGL and OpenCL support level. The only place this really shows up though in Windows is software rendering - which lacks OpenGL because Windows lacks OpenGL whereas Windows can software-render DirectX AFAIK.

Apple didn't allow AMD though to continue updating OpenGL in their MacOS drivers, possibly because (I'm just speculating) they decided to invent Metal to replace OpenGL around the same time as their NVIDIA spat when they stopped updating OpenGL. Metal came out in 2014, the NVIDIA spat + OpenGL abandonment was 2012. Just my suspicion that MacOS's OpenGL is NVIDIA-based.

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