It's better than OpenGL 3 in my opinion. It has a much saner API, is a lot more predictable, and API calls can be made from multiple CPU threads. OpenGL 4 has

It's better than OpenGL 3 in my opinion. It has a much saner API, is a lot more predictable, and API calls can be made from multiple CPU threads. OpenGL 4 has some more advanced features like bindless that WebGPU lacks (and Vulkan has), but I wouldn't use OpenGL because of that. My recommendation is start with WebGPU if you're new to graphics programming. Once you're at the end point where you have a bunch of working features and have optimized your engine as much as you can, and are starting to push against WebGPU limits, then I would think about switching to Vulkan 1.3 / DirectX 12.