Well, based on my DEXA scan from before I started on tirzepatide, if I had dropped to 20% BF with my starting LBM, I would have been in close to the best shape of my life. I certainly have a lot of extra muscle in my legs from carrying my fat ass around.

> Does more muscle mass indicate stronger muscles?

Yes. Strength for specific movements involves CNS adaptation, but if you look at the top tier of powerlifters, ranking them within a weight category by MRI muscle mass would produce basically identical results to their actual rankings.