Anonymous
“the very sensitive […] window corner”
(the following “tip” is not specific to antiX, nor specific to any particular window manager)
While mouse pointer is over any application window, press and hold Alt key, and press and hold RightMouseButton…
and notice that moving your mouse causes the window to be resized.
This spares you from having to target and grab the exact window corner (handle).
Top-left, top-right, bottom-left, bottom-right ~~
whichever quadrant of the window your mouse cursor is hovering when you initiate the resize,
the result is same as if you had moused to and dragged by using the exact corner
