Rant mode on.
This drives me bonkers.
On iOS, if you have LIVE photos turned on your camera won’t make a sound when you press the shutter.
I like and need sound, especially if I am using the timer.
I’m usually not using LIVE photos so every once in a while it gets turned on by accident and then it takes me a few minutes to figure out why.
Rant mode off.
Apple’s link to the topic here.