I’ve been dealing with a frustrating iPhone issue for a while. I don’t recall when it started, but my sound notifications have not been working for my iPhone’s Mac Mail app despite having everything setup correctly.. When I would receive email to my Gmail and Gmail Workspace accounts, I would see badge and banner notifications on my phone, but there was no sound notification. I have the iPhone 15 Pro phone.
I went through all of the troubleshooting recommendations I could find on Apple forums, Reddit, and elsewhere. I visited the Apple store Genius bar. I turned notifications off and on. I went through custom alerts and turned those off and on. I turned individual settings off and on. I reset my iPhone. I regularly updated my iOS when I could.