I think it really depends on how it's used. It's a massive accelerant if it's just helping you stitch stuff together. Or when it helps you get unblocked by quickly finding you the missing api you need.

But when it replaces you struggling through figuring out the mental model of what you're doing, then I think you end up learning at a much more shallow level than you would by doing thing manually.

And that's a fast lane for security issues a plenty, when you cannot spot them because you don't even understand what each part is supposed to do.