OpenGL is recommended to get started and learn the base concept then if you survive that you can try Vulkan.
Will Vulkan replace everything? Seems unlikely considering Microsoft is not dropping DirectX anytime soon, and apple pretty much despise The khronos group, while the web seems to want to go the WebGPU route now.
And openGL seems to simply not die.
> OpenGL is recommended to get started and learn the base concept
IMHO learning OpenGL today just fills your head with outdated concepts, the API is much more confusing than it should be, and error reporting is non-existent.
At least more modern APIs tell you exactly what you did wrong in their validation layers.
I wonder if using your library (https://github.com/floooh/sokol) instead of OpenGL will alleviate some of these issues for newcomers! There's already a sokol port of the learnopengl.com code (https://github.com/GeertArien/learnopengl-examples), so it shouldn't be too hard to match between the tutorial articles and these.