The screen usage is the same for me on Windows 10 and I do not believe it can be changed (other than, possibly, making some sort of adjustment in video settings).
Otherwise, you can try contacting Support to check and see if they have any ideas.
Did you adjust the minimize/maximize window function ? I have WIN 10 and the 2020 downloaded amendment program which is full screen on a 24" monitor set at MAX.
@Critter-3 wrote:
Did you adjust the minimize/maximize window function ?
I think @petems is referring to the space to the right of the arrows in the screenshot.