It's not "useless". The usefulness of the autocomplete options is not on whether or not you click them, it's about education. Most laypeople have no idea what LLMs can do... this feature delicately and non-intrusively shows you what is possible with the product.

This is a huge issue with people using novel interfaces -- the "blank page" problem -- users simply don't know what to do with the empty box. Which is why with AI tools, the most common inputs are generic search terms especially with first time users.

But if I start typing "Led Zepp" into the box, and I see an autocomplete for... "Led Zeppelin if it was techno" or "Led Zeppelin style music with djembe beats" now I have a clue as to what kinds of things I can put here, even if I don't care about those specific things.