I played with LLM humor over a year ago, so, on much worse LLMs, and even then, while I wouldn't have fed LLM content directly into a standup routine, they were very useful for idea generation, if you wanted to be a comedian. They have a very interesting outlook on humor.

Professional-grade humor is, like a lot of creative exercizes, more about generating lots of ideas and filtering through them for the best than generating nothing but good ideas. Could probably be leveraged into quite the interesting blog or something.