I used to use the terms Bokeh and Depth of Field interchangeably until one day I realized that I was wrong. Maybe you can relate,
or maybe I am just a slow learner 😉
Bokeh best describes the out of focus area of an image, and good bokeh is when those areas are smooth and silky
with no sharp edges.
Depth of field (DOF) is the amount of the picture that is in focus, as opposed to bokeh which is the amount out of focus.
While depth of field does cause bokeh, bokeh does NOT cause depth of Field.
Bokeh and depth of field can work together. Some lenses have a better quality of bokeh than others and
some lenses provide a more shallow depth of field with result in better bokeh to begin with.
How much of that effect you are trying to achieve depends on your depth of field.
I believe bokeh is a matter of preference.
Much of photography is a matter of personal preference, and it’s a fine line between an image
being simple and simply breathtaking.