I am using Xubuntu 18.04 32-bit version and use Zoom. I encountered a problem with the shortcuts while attending a class on Zoom. I could not exit full screen using the key 'Esc' while the keyboard shortcut menu clearly shows that the shortcut for 'Enter/Exit Full Screen Mode' is Esc.
After further investigation, I realized that the 'Cancel' shortcut in the Window Manager has the same shortcut key. Is that the cause of the problem? I really don't know as I am fairly new to this OS.
I don't want to change the 'Cancel' shortcut in the Window Manager as I use that often but I am willing to change the shortcut for Zoom but it seems that there is no option for it. Please guide me as to how to change the keyboard shortcut for Zoom and is there even a way to do that.