You don't make something easier to find by hiding it even more deeply
Commenter rolfhub suggested that, to help people recover from accidentally going into Tiny Footprint Mode, the Task Manager could display a right-click context menu with an entry to return to normal mode. My initial reaction to this was Huh? Who right-clicks on nothing? Tiny Footprint Mode is itself already a bad secret hidden setting. Having the exit from the mode be a right-click menu on a blank space is a double-secret hidden setting.
If I had dictatorial control over all aspects of the shell, I would put a Restore button in the upper right corner to let people return to normal mode.