I think one of WebGPU's greatest strengths is learning, as you can get started pretty easily, and you actually learn a modern approach to GPU. Vulkan requires a significant amount of boilerplate just to establish a connection to the GPU and set up basic resources like the ability to allocate buffers. In WebGPU, the latter is one or two lines of code.

That said, there are some really nice learning resources for Vulkan as well, so if you're motivated and determined, it's also not a bad way to learn modern GPU.