Galaxy S23 Ultra vs. Galaxy Z Flip 6

Greetings, everyone! I have a Galaxy S23 Ultra and, like the title suggested, I would like to simply know if I'm going to make a good choice of picking the new Z Flip 6. Even if I bought the S23U last year, it's too big for my pockets (ahah), and I wanted to switch to a Z Flip. Luckily, when this idea came, there were already rumors about the 6th, and now it's pretty much confirmed. What I want to know is if it will be a good upgrade (like, camera [especially] and system, charge speed, battery, etc.), or if it's best to stay with the current one that I have.

Thank you so much for your time and answers, and I wish you all a pleasant day! :)