Yes, it's worse than this too. We usually associate well-written text with accurate information. That's because, generally speaking, most people who write well are highly educated and have been taught to be critical of their own writing.

Text generated by large language models is atypical in that it's written like an expert but is not critical of its own ideas. We now have an unlimited amount of well-written, poor-quality information, and this is going to cause real problems.