What technique are you guys using for smoothing the bokeh of an image?
I usually use a masked instance of diffuse or sharpen with the surface blur preset with the blending mode set to geometric mean. This is slightly fiddely to set up but IMHO nets neat results.
DT 5.6 with AI mask to select ladybug and flower it is sitting on. I only sharpened the ladybug and flower using the AI mask. I then used a preset I created for bloom in the diffuse or sharpen module that uses harmonic mean (very similar to geometric mean). I selected the AI mask I created for sharpening and inverted the mask to add bloom to the background only. This is also an effective technique to reduce noise (if present) in a blurry background.