I find I’m accidentally holding down my iPhone’s volume buttons _all the time_. Most of the time it’s something else in my pocket doing it (I keep my AirPods case in the same pocket as my phone).
I’m kind of floored that there’s no accessibility setting to only change volume on each click of the volume button, and not auto-repeating when the button is held down.
I filed a feedback for this (FB23913894) in case anyone at Apple sees this :)