Yeah, Lainey had a piece on it today - saying she got paid, she didn't have to go to set, AND Patricia Field dressed her (and she is NOT costuming this series!). She also notes that SJP would have had to approve this decision, and she did because she's mature and it's what is best for the show. I didn't watch the first season, still not compelled to - the reviews weren't the best....
https://www.laineygossip.com/in-shocking-twist-kim-cattrall-will-appear-in-and-just-like-that-after-filming-on-her-terms/74173