It's not that challenging, the answer is, it depends.

It's like a junior dev writing features for a product everyday vs a principle engineer. The junior might be adding a feature with O(n^2) performance while principle has seen this before and writes it O(log n).

If the feature never reaches significance, the "better" solution doesn't matter, but it might!

The principle may write once and it is solid and never touched, but the junior might be good enough to never need coming back to, same with a llm and the right operator.