@arcade to be honest, it is hard to keep up when web standards change faster than any reasonably full implementation can keep track of.
and specially for things that directly talk with OS/system services, there is some security considerations to take into account first.

heck, Google folks are already preparing a web-specific GL/Vulkan-like graphics API, separately from WebGL.

no reasonable team can keep up with all of this and still have a safe browsing environment