I would suggest a tool to help making a blurry background - called Bokeh.
Your subject recognition really rocks - and I would love to use that masking for other programs - or even better having a tool inside Photo AI to making a Bokeh, called Bokeh AI. I use MFT camera, and there could be a bit of improvement.
I do have the perfect picture to train the algorithm - green grasshopper before green background
Adobe LIghtroom Classic CC has added the feature you are looking for. The lens blur feature helps blur out foreground and background. The depth of field affected is adjustable. The feature also has a bokeh adjustment and several different types of bokeh models to choose from. I have found it a much better function than just isolating the background and using sliders to for fine tune, clarity, denoise, sharpen, and denoise to blur the background. Would be nice if this was placed in Topaz AI.
