Chatgpt is in no way shape or form a reliable source of information. The Information provided may be out of date, out of context, or even wildly wrong and you have no way to verify this unless you do the research yourself.
All our current parodies of actual AI are able to do is be very convincing that what they say is true. They don’t know if it’s true, nor are they able to figure that out. They don’t care either. They are just chatbots with bells and whistles.
Do not use them as sources of information, if anything have them give you an answer that you can then use as a starting point to verify their truthfulness.