The first one is usually short and requires a very deep understanding of one or two profound, new ideas. The second is usually very big and requires a shallow understanding of many not-so-new ideas (which are usually a reflection of the oroganisation that produced the code).
My feeling is that, provided a sufficiently long context window, an LLM will be able to go through the second kind project very easily. It will also be very good at showing that the first kind of project is not so new after all, destroying all people who can't find really new ideas.
In both case, it'll pressure institutions to have less IT specialists...
As someone who trained specifically in computer sciences, I'm a bit scared :-/