Hard to say. He was a professional journalist until 2023 when he worked for CNN. My guess is that the change from
professional to
independent is the same as other professionals.
That is, as an employed professional, there are professional ethics and standards that govern what professionals do during, and outside of, work. Violation of those professional ethics can result in job loss. That may be why Don Lemon was let go in 2023.
Professionals who are not employed, but who continue with their craft independently, are no longer governed by professional ethics and standards. That is, those ethics and standards are voluntary. That is not to suggest that Don Lemon no longer adhered to professional ethics and standards, only that he could not experience job loss through violation of those ethics and standards.
~ in my humble opinion ~