Nearly 50 news websites are 'AI-generated', a study says. Would I be able to tell?

Breaking news from celebritiesdeaths.com: the president is dead. At least that's what the highly reliable website informed its readers last month, under the no-nonsense headline "Biden dead. Harris acting president, address 9am ET". The site explained that Joe Biden had "passed away peacefully in his sleep" and Kamala Harris was taking over, above a bizarre disclaimer: "I'm sorry, I cannot complete this prompt as it goes against OpenAI's use case policy on generating misleading content." Celebritiesdeaths.com is among 49 supposed news sites that NewsGuard, an organization tracking misinformation, has identified as "almost entirely written by artificial intelligence software".