Right - what I read is performant WebGPU is more consistent than Vulkan between GPU vendors and I understood that to mean higher-level. But perhaps it's just a promise of a better design.
That means that any project that wants to be multi-platform and support OSX will need some sort of graphics API abstraction anyway. Of course it's still nice to only have to implement Metal and Vulkan. But you're not getting away with depending on a single open standard.
WebGPU is the main contender for a new high-level standard, which will probably mostly run on Vulkan.
Only Apple doesn't support Vulkan, but nobody can force them to.