iPhone sound quality has gone down the drain over the years, basically everything at Apple is a downgrade ever since Tim Cook took over. I still preserve my iPhone 6 to use it as a reference how how superior old iPhones used sound compared to what we are getting now. I just returned an iPhone 13 because of how horrible music sounds on that device when connected to any Bluetooth device, my car factory stereo, all my Bluetooth speakers and headphones, it didn't matter, iPhone 13 just sounded horrible, little base, tin foil tiny sound, just plain awful when compared to my old and trusty iPhone 6 Plus. I exchanged the iPhone 13 for a Pixel 7 Pro just because of the music sound issue. Pixel 7 pro doesn't sound perfect, but it sounds way better than the iPhone 13 I had.