> I wonder if Apple will budge on their not-invented-here syndrome and allow for a real vulkan

Do you realize that Vulkan as an idea (not even as a spec) appeared 1 year after Metal was shipped?

Do you realize that apart from Android there's no platform that truly supports Vulkan?

> That would solidify it as not only the best graphical workstation OS, but also the best gaming OS

Of course it wouldn't. Vulkan is on its way to become the next OpenGL