The games I care about enjoy native Metal and DirectX, and when I code anything graphics I don't use Khronos stuff, only on the Web, where there is no other option.

Any game dev gems have basic examples on doing an API loading layer.

Vulkan is mostly a Linux thing, and even the Switch has its own native API, NVN, it is not Vulkan nor OpenGL on the driving seat.

Here enjoy, https://www.ogre3d.org/