I am using Network Scanner on Windows 10 with a high DPI display (250% scaling on a 4K display). My only complaint is that the toolbar gets pretty small on my screen. I tried to make the toolbar a bit bigger by using the High DPI Scaling Override options but the "System" option makes the UI blurry (this is typical for most applications).
So to get the interface to look good on this display, I have to override DPI scaling and use "System Enhanced" scaling for the main executable application file. However, while the application looks good on the high DPI display in this mode, the tool bar buttons disappear when my mouse passes over them and I cannot click them. When using other DPI scaling settings, this does not happen.
It is not too big of a deal, and I can just leave the scaling at its native behavior and live with the smaller toolbar buttons, but I thought I'd let you know in case the situation can be improved somehow.