I feel like this is a big reason for people wanting to using ChatGPT (LLM's in general) for search results.

Search engine quality has declined due to ads/sponsored results and the adversarial nature of SEO driving the signal-to-noise ratio into the ground. So now people are using ChatGPT to lookup the information they'd normally use a search engine for but don't want to wade through the tens of sponsored posts to get to something useful.

The idea of LLM's taking over search is pretty gloomy to me, because it destroys the discoverability of unique information. Sites that have expert information often leads you down the rabbit hole and introduces you to new information. With LLM's you will get 'mean reverted' results and won't be introduced to that information that sparks curiosity.

On the other hand, it's pretty hard to find those nuggets with search engines these days. Years ago, you'd be able to just Google for the answer. Now you have to go to specific sites to search those knowledge bases.

In a recent Google, the first non-ad result was accessible only after scrolling through two pages (phone height) of ads. At least they're marked "Sponsored"...