You can use Wikipedia in many, many ways.
"Source of reliable information" is one of them.
"Source of how a topic has changed over time" is another.
"Source of what disputes are more common regarding specific parts of each article" is another.
And so on...
Even if most people don't actually do that and trust every small bit of information (like the original amount of hair of some classical composer had), some other people will in fact track and try to understand the path of that information and whether is truthful or not, relevant or not.
Maybe one day LLMs will allow that kind of thing as well. I don't know. Currently they don't offer that choice.
Does that answer your question?