Because of a few things : 1) in a camera, you’ll have a big (>1inch) sensor. 2) in a camera, you’ll have a much bigger lens diameter, thus a bigger aperture dia

Because of a few things : 1) in a camera, you’ll have a big (>1inch) sensor. 2) in a camera, you’ll have a much bigger lens diameter, thus a bigger aperture diameter (not f number). Both effects will decrease the width of the focus point, wich will increase the bokeh effect.