Not really incompetence. One example was a tricky SQL query to power somewhat complex dashboard. The dev made a mistake and misunderstood requirements first. So that took two days. I tried building the query too, but didn't find the right constructs in SQL and dropped it after 30mins (and stack overflow had multiple open questions about this, no good answer either).

I then asked ChatGPT and that spit out elegant solution with multiple inner left joins, but understandable and workable.