Picked up a couple of bar-mount camera holders a few years ago when my stoker suggested I shouldn't take pictures while captaining our tandem by holding the camera in my hand. (Easily accessed as it was hanging from neck strap.) Small Canon Powershot Elph now stays in place pointed forward during our rides. Takes one finger to to turn it on and one finger to push the shutter butter. Sometimes I get a usable shot. Easily unscrews from the mount for use while stopped. A friend tried one of these cheap Amazon/Chinese camera mounts and it broke under the weight of his somewhat larger camera.
Reaching around behind me for a water bottle from its cage on the back of my seat frame is more distracting than taking a picture with my setup.



Slow start of a club ride preceding the Indy Crit a couple of years ago.