In this case probably Vulkan, as developers tend to use current computers which support Vulkan, which is faster and younger and has less overhead.
In other cases you probably want OpenGL because older GPUs don't support Vulkan and usually you want to include as many users as possible.
How is rewriting history an "improvement"? I fear the day when this will actually be uploaded to Wikipedia (be it in the open or secretly) and history will be erased by it.