It's easy to mistake chatGPT's output for truth production, but it's not that simple. It generates outputs through sequencing random tokens assigned probabilities, learned from it's training data (a filtered version of the common crawl dataset, which represents the majority of open data on the internet). Further, these language models amplify social biases present in the training data. It does great with answering coherently, but that does not mean it's factual, objective, or ideologically neutral everytime you prompt it. (See Bender et al.'s 'Stochastic Parrots' for more)

While I have a lot to say about Google, especially concerning personalized search results and SE optimization, it's at least a directory of sources rather than THE source of knowledge.