Counterpoint: Paul Newman was absolutely a famous drunk, as evidenced by this Wikipedia page.* Any query for "paul newman alcohol" online will return dozens of reputable sources on the topic. Your post is easily interpretable as handwaving apologetics, and it gives big "Its the children who are wrong" energy.
How else does an LLM distinguish what is widely known, given there are no statistics collected on the general populations awareness of any given celebrities vices? Robo-apologetics in full force here.
https://chatgpt.com/share/67f332e5-1548-8012-bd76-e18b3f8d52...
Your query indeed answers "...not widely known..."
"Did Paul Newman have problems with alcoholism?"
https://chatgpt.com/share/67f3329a-5118-8012-afd0-97cc4c9b72...
"Yes, Paul Newman was open about having struggled with alcoholism"
What's the issue? Perhaps Paul Newman isn't _famous_ ("known") for struggling with alcoholism. But he did struggle with alcoholism.
Your usage of "known for" isn't incorrect, but it's indeed slightly ambiguous.