In the sense that OpenGL and Vulkan are paper standards that OEMs might implement, whereas they tend to design their DirectX drivers alongside Microsoft, and then their OpenGL/Vulkan drivers are mostly an afterthought.

This is especially visible when buying random asian cards that aren't the reference designs from AMD and NVidia. Intel was never great regardless of the API.

Additionally we have the usual extension spaghetti, which is one thing that has beaten them here.

Require too many of them, and coding around their inexistence becomes like using yet another API, that is similar but not quite.