Same! I swore I would never have a big phone again when I got the iPhone 12 mini three years ago… I’m typing this from my iPhone 15 Pro Max and I couldn’t be happier.Yes, the 16” is a bit bigger when you‘re carrying it around. But like anything else, you get used to it. For me, the benefit you get with the extra screen real estate and better cooling make the trade off completely worth it.
Like the poster above said, the same thing happened for me when I got my iPhone Pro Max. It seemed huge at the time….But now, I never think about the size and I could never go back to a smaller phone. I love it.