The bokeh is a natural byproduct of the primary sensor's focal length. If you want to minimize it when taking pictures of close objects, select 2x zoom and pull the phone away from the subject a bit. More of the subject will be in focus, with a lighter bokeh effect.
Another little known fact about the Note 20 camera: it has a 5x optical zoom lens, BUT THE PHONE DOESN'T ALWAYS USE IT.
If you're in anything less than bright lighting, the phone forces a 5x digital crop from a primary sensor image. Those look like trash.
People don't know the phone does that, because Samsung doesn't tell us the truth about their camera software, so they end up scratching their heads as to why pictures look so horrible sometimes.
In low light, the 5x periscope lens might as well not be on the phone, so never go above 2x zoom in those conditions.