If you actually watched videos of the tour, you would see that she is singing her face off, dancing very well, serving looks in heels that would terrify most people, and genuinely having a fun time doing something she hasn’t done in seven years. Her stage presence & vocal acrobatics have never been better or more controlled.
For what it’s worth, I was in the same room with her a couple times in 2024. She’s built tiny. I’m short for a guy and I was still looking down while talking to her. She may have lower body fat now, but she has always been naturally thin and smaller overall than you’re assuming.
I am big. It’s the REVIVALS that got small.