
AI Search Sends Users to 404 Pages Nearly 3X More Than Google
AI search engines send users to 404 pages more than Google. A study of 16M URLs finds ChatGPT leads in hallucinating links.

Good short read.
It's essentially saying GPT is leading the way sending users to either dead links or gets the url structure confused.
Problem is I found when using GPT is 90% of the time it makes a url up anyway based on what it thinks the structure should be. Even though you provided it with the correct urls to link in content or whatever it still does and can go off and do what the heck it wants.
Muller from Google saying rather than focusing on "accidental" traffic sent to dead pages to make better 404s...