Some aperture rings have click stops at certain settings. Some do not. Some have a way to turn the click stops on or off.
Most all in one zoom cameras have an optional "step zoom" setting that makes the zoom lever change the focal length from 24 to 28 to 35, 50, 85 mm equivalent and beyond.
I have never heard of a zoom lens for an ILC with click stops at 24, 28, 35, 50, 85, etc. in mm equivalent. For myself, this is one feature I miss from all in one cameras.
People talk about a zoom lens that is "just as good as" a set of primes. I would think that click stops would help in that regard, perhaps making it easier for a long time prime user to stick with zoom lenses.