Does it really solve the same problem? Can I run metal API on my windows or linux machines?
Also, to answer your question: no. Nvidia is in the GPU selling business. They wouldn’t mind having their high priced GPUs in high priced laptops. Apple keeps control of what hardware they sell, which dictates what software gets developed. Why would Nvidia or Apple spend resources to make software for a computer that no one is selling? It’s Apple who refuses to buy rather than Nvidia being unwilling to sell.
The problem space Vulkan and Metal solves is not high level cross platform graphics (which OpenGL tries to solve), it’s low level control over the GPU.
That’s the problem they’re trying to solve, it’s not about cross platform.
You might ask, ‘Then why is OpenGL deprecated?’. The answer is that Apple is just deprecating it’s own support since there’s a more low level API, OpenGL should be implemented on top of Metal, which (for example) MoltenGL is.
I can run OpenGL and Vulkan on my Windows system.
MacOS is the only platform that has officially deprecated OpenGL support, and there is no plan for any future Vulkan support.
Also, to answer your question: no. Nvidia is in the GPU selling business. They wouldn’t mind having their high priced GPUs in high priced laptops. Apple keeps control of what hardware they sell, which dictates what software gets developed. Why would Nvidia or Apple spend resources to make software for a computer that no one is selling? It’s Apple who refuses to buy rather than Nvidia being unwilling to sell.