This subject has come up a couple of times in the past:
https://community.ricksteves.com/travel-forum/tourist-scams/a-i-generated-guidebooks-scam-online
https://community.ricksteves.com/travel-forum/tourist-scams/guidebooks-written-by-ai-bots#reply_2316076
Google the subject and it'll return umpty articles and discussions such as these:
https://www.npr.org/2024/03/13/1237888126/growing-number-ai-scam-books-amazon
Like some of you, I never rely on a singular guidebook, would never use one that's not from a tried-and-true publisher, never look at sections for hotels or restaurants, or note published attraction hours and entry fees. That's where recommendations from many of you come in, and the websites for the attractions on my interest list. In fact, I'd like to see guidebooks dispense with hotels and restaurant stuff altogether to make space for more attractions, cities, etc.
I also don't travel per Rick's style, especially when it comes to itineraries, and you'll have to pry our 24" Travelpro bags out of our cold, dead hands until we can't manage them anymore. LOL, some of us have been roundly flogged by other posters for advising (mostly first-timers) against his suggested itineraries as we feel they're too rushed. IMHO, there's no better way to come away hating a place than trying to cram 3-4 days worth of square peg into the 1.5 day round hole, and especially so if something goes sideways!
But in the end, it's all about personal interests and style plus other factors such as traveling with disabilities, a large, multigenerational group, tiny children, etc. If Rick's suggested itineraries work for you then fine but I have to believe even the 'boss' here would nod approvingly for suggesting a less-is-more plan. It's about the going at all, and getting out of the trip what YOU want to, eh?