Software development is a quite vast discipline.

In my experience performance of LLMs can be surprisingly good on things that are not mainstream, like database engineering, and surprisingly bad at mainstream categories approached in an unconventional way.

That said, I'm amazed that you have 50 years of experience and still able to have the mental flexibility to adapt to new development paradigms.

As you imply, this stuff isn't simple to pick up, and is completely different on how we have done our job without AI.