Was embarassing having this go off in an art gallery yesterday - I understand there are reasons people don't want cameras to be silent, but people can just download an app for that if they want to.
I did get a reply from Samsung.
Apparently it is EU law now that shutter sound is required.
Laughable as you can download an app which mutes it.
Stupid to not support it natively and 100% annoying.
Use Bixby Routines.
Condition: application, camera
Action: do not disturb on (important: do not use volume because it makes a sound when you turn the camera off)