IDE's can generate the proper structure and make simple assumptions, but LLM's can also guess what algorithms should look like generally. In the hands of someone who knows what they are doing I'm sure it helps produce more quality code than they otherwise would be capable of.

I'm unfortunate that it has become used by students and juniors. You can't really learn anything from Copilot, just as I couldn't learn Rust just by telling it to write Rust. Reading a few pages of the book explained a lot more than Copilot fixing broken code with new bugs and the fixing the bugs by reverting its own code to the old bugs.