No, this isn't a case of different people having different opinions about different ways to obtain information during different times. More often than not, I find that the SAME people who act like Wikipedia is the most unreliable thing on Earth unironically trust the FIRST Google Search result they see, as well as everything they've ever seen in ChatGPT.
Need I remind you that Google is LITERALLY designed to cater to your biases? And it's gotten WORSE because the first result you see is NOW AI-Generated. Also, Google is not a source! And AI Chatbots cite THEMSELVES as sources!
Wikipedia on the other hand is curated by REAL VOLUNTEER HUMANS who strive to be accurate as possible. I'm aware that Wikipedia is no stranger to agendas or vandalism, but these editors are quick and dedicated to be as accurate as possible. So much so that whenever a building is on fire, they LITERALLY label it as "Status: Burning". Not burned... BURNING! Meanwhile, Google tells you to put glue on your pizza...
And yes, I know that Wikipedia is not a source. Like Google, Wikipedia is a GATEWAY to sources, and not a source in and of itself. But at the very least, Wikipedia DOESN'T try to give you what you will like, because you'll get what is (most likely) the truth instead, backed up by several CREDIBLE sources that are constantly fact-checked by volunteer humans.
So why do people hate Wikipedia so much? And why do these SAME PEOPLE cite Google and ChatGPT as a source?
Wikipedia is good for getting a good overview of a topic, but like any other source, should not be used alone. Wikipedia by itself is bad, an article by itself isn't good, even the most accurate source should never be used alone. Always refer to multiple sources. Don't trust one Google result, use many. Ideally don't only use Google results, use other engines too (metasearch engines like SearXNG instances are great for this). Use Wikipedia, Britannica, or whatever other wiki in combination with each other. Feed into multiple news sources, not just one or two.
I don't think many people are trusting the first Google result while also disliking Wikipedia, since for many topics, Wikipedia is the first result you see!
As for LLMs, it's a case of convenience and laziness. They summarise information to a readable format (often leaving out important details) that are easily digestible (but often lacking in context) compared to some of the longer Wikipedia entries (or most other sources in general)