Hello.
Autohide panels in Plasma have one annoying feature:
When I open window in fullscreen (i.e. Blender) and place my cursos near this hidden panel area, this area appears some deadzone, because panel doesn't let me to reach actual window. This is very uncomfortable, because I have to drag blender's toolbar a bit lower, to reach buttons.

This problem exists in all fullscreen apps, But Blender affected most because it uses every pixel of my screen

Don't know, is it a bug, or a feature, but it exists in 4th and 5th Plasma.

Please, fix that.