My AirPods Pro often fail to connect properly, appearing connected but music still plays on cellphone.
As an introvert, I don't like to bother people. When I'm in a quiet coffee shop or library, I turn down my phone volume, select a white noise track in Apple Music, and put my ear near the bottom of the phone.
So, I created the simplest app of my life: open the app, and it plays the sound of waves. If your phone is in silent mode, it won't play anything when the connection fails, even if the volume is high.
I posted it on the web, and many people didn't understand its purpose, thinking it was just another white noise app. It received very few downloads. However, it's the only app I made that I use every day.