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Hindsight is always 20/20.
In hindsight the separation of GL and GLES was pointless IMHO (at least up to 2.x).
It led to GPU vendors to only offer GLES drivers besides the GPU supporting GL (according both the marketing and https://github.com/ptitSeb/gl4es) and made porting standard linux apps to arm platforms needlessly difficult. Note that even with GL4es you have to port the shaders manually to GLES.
Vulkan is a big improvement to that.
I totally agree, and so do the people working on it as well as some of the volunteers who write tutorials.
There's an ongoing effort to create beginner friendly introductory material which was discussed in the recent Vulkanised conference. And an effort to make a better documentation site that's easier to browse than the specification.
On the volunteer front, there's a Vulkan 1.3 -based introductory tutorial (work in progress) over at https://vkguide.dev/
I think there should be a Vulkan tutorial that doesn't start with the boring stuff of initialization and window creation. It's stuff that you write once and forget about, and nothing particularly interesting happens in it.
Looking at my hobby project, excluding the boring stuff (which is reusable), a "hello compute" example is around 100 LOC and a "hello triangle" around 120 LOC. GLSL shader sources included.
Maybe someday I'll get around to writing a "learn Vulkan the hard way" blog post with examples.