I believe, and I couldn't quickly find it in the docs, that Mesa provides certain OpenGL versions if you have implement certain OpenGLES version. For for example if you have OpenGLES3 you get OpenGL 3 for free via Mesa (These version numbers are made up, I don't actually know which OGL version can be implemented in terms of OGLES)
From a spec based standpoint you maybe right but I'm clearly not talking about that. Else it wouldn't be possible that Asahi linux is running non-ES OpenGL based application when there is ONLY an openGL ES driver.