Disable the right-mouse button when the left mouse button is held?

(the following was copied from forum post which is open for discussion here: https://forum.xfce.org/viewtopic.php?id=15121)

Okay so, this issue affects a bunch of quality Xfce programs and non-xfce-programs, afaict.

When a user clicks the left-mouse button and holds it down then clicks the right-mouse-button, unpredictable things can occur.

It happens in Thunar.

Mousepad text editor has maybe the most unpredictable behavior with focus jumping to an entire other tab, among other things.

I'm sure that there are programs (especially games) in which the above mouse-click combinations are perfectly valid and so I'd never suggest any OS-wide solution, but maybe as part of the "state-machine" of any quality Xfce offering that is negatively affected, it may be worth disabling right click functions when the left mouse button is held?

What do fellow Xfce friends think?