Here’s a better metaphor because yours completely misses the mark when it comes to the difference between an LLM and an actual encyclopedia.
A painter will spend years honing his craft by studying other paintings as well as photos and real life. If you ask him to paint you a house from memory and try to build it with what he gives you, that just makes you an idiot, it doesn’t make him a bad architect.
Chatgpt is not an encyclopedia and any thing it says that is remotely important to your personal or work life should be verified. They explicitly tell you it can and will give false responses.