Keyboard shortcut to toggle OUT of a Citrix Workspace Desktop Viewer session

Background

I'm using the Desktop Viewer functionality in Citrix Workspace (version 20.2.0.25(2002)) to access my work computer from my home computer.

Request

I would like to be able to toggle out of my (full-screen) remote session back to my local desktop more easily.

Currently I can only accomplish this via the control bar at the top of the remote session screen which is starting to feel tedious.

Alt+Tab doesn't work, because it only toggles the applications within the remote session when the session is open.

Whether toggling is accomplished via getting Alt+Tab to work as desired, a hotkey that just minimizes the session window, or some other method doesn't matter to me.

What I've Tried

There are many questions online addressing how to enable Alt+Tab within the remote session, but not disable it. Naturally I've tried to do the reverse of these instructions but no luck. They typically suggest setting TransparentKeyPassthrough=Remote in the registry of the local machine, so I figured mine should have Remote already and I would just need to clear it or replace it with something else, but mine is a null value.

I've gone through all options within Citrix Workspace and the Remote session Preferences but there's nothing about enabling/disabling/setting hotkeys.

I tried the "Disable Hotkeys through the ICACLIENT.ADM Template" of this Citrix Support page, but was unable to locate the icaclient template file they refer to.

I've contacted my company's help desk but they don't know of any solutions.

You can access the citrix menu as described here:

As an accessibility feature of the Desktop Viewer, pressing CTRL+ALT+BREAK displays the Desktop Viewer toolbar buttons in a pop-up window.

So the shortcut for toggling out of the viewer session would be:

CTRL + ALT + BREAK, CURSOR-DOWN, ENTER