I’m pull this one back up as I did a bit of testing on all my camera apps today. And I think it is safe to assume the OIS shake is now over. So I took a look at the click business at the launch of a camera app.
For me all make some quiet click and some static which is normal. These include the stock Apple app, Halide, Pro Camera and Filmic Pro. - and a dishonourable mention for Beastcam. Beastcam actually gives a loud click and you can see the lens literally moving back and forth - but just once. The other apps do the same but not to this extreme. Anyway, I deleted the app as I’m not crazy reproducing that over and over again. But it did the same loud click on my 12 Pro Max which also freaked me out so I deleted the app on that phone also!
So what did we learn from my brave and heroic test on an iPhone 14 Pro Max?
It sure looks like it is all software related as the same thing happens on the new 48mp camera and the main 12mp camera in phones two generations apart.
I would not return any phone with a camera that clicks loudly using a certain app, as there is nothing wrong with your phone’s hardware, it’s the app that has got to get their act together. I would stop using that app until others report it safe, or after several updates from Apple and the apps in question and try again.