I've been using ChatGPT to help learn WebGPU. There's basically nothing on the web about WebGPU except a couple of shitty half finished tutorials that don't explain anything. The spec is still changing so half the code in them is wrong.
ChatGPT can take a current code example from code using WebGPU (which it has completely incorrect knowledge about since the spec has changed since the training data cutoff), and explain it anyway. Presumably using it's knowledge about Javascript and the underlying graphics APIs (Vulkan, DX12, Metal). It's applying general concepts to new code, and doing it pretty well.
I'm not sure how much value this actually has. I may have just stumbled upon the one thing it's actually useful for. I actually think code generation itself is useless. I'm massively short on Copilot, in fact, I think it's actively making people worse programmers because it encourages a workflow that produces more code and less understanding. Good programming is about less lines of code and more understanding.
My initial read on ChatGPT is that it can potentially help with that, especially where Google results get thin. (And also that everyone using it to generate code to copy/paste is an idiot and missing the point, basically).