Where does that notification sound come from?
Since a few weeks, my iPhone gives the standard tritone notification sound, but I have no idea what generated that sound. There is no visual message. To troubleshoot, I have disabled notification sounds on almost all apps, but I still get the random tritone - several times per day, about 2-3 per hour.
All apps are up to date, running the latest iOS version. My phone is an iPhone 13 Pro Max.
How can I find out what app, or other entity, is generating the sound?
iPhone 13 Pro Max