No. LLMs can only reorder what they've seen in training data in novel ways. Humans can have original ideas that aren't in their training data. As a trivial example, John Carmack invented raycasting for Wolfenstein 3D. No matter how much prompting you could have given an LLM it could never have done that because there was no prior art for it to have been trained on.

In pragmatic terms though, innovation like that doesn't happen often. LLMs could do the things that most developers do.

That said, I don't agree with the notion that LLMs are simply generating content based on their training data. That ignores all the work of the AI devs who build systems to take the training data and make something that creates new (but not innovative) things from it.