Isn't "caveat" a synonym for "warning?" Why would she say that?

Native speaker’s answer
Rebecca
Yes, that's right! Here it's she's kind of like she's "warning" the audience about a detail that needs to be considered when evaluating or doing something. It's an extra detail she and the viewers didn't consider fully before now. Ex: I'll leave you with this caveat: Never go ice skating on thin ice. Ex: She agreed to do the interview with the caveat of asking her own choice of questions.