I always have thoughts, organizing them for presentation to the general population is the trick
The script icon shows up, the "quit all apps" folder is there but when I click on it, nada!
Did you mean a "quit all apps" folder or the app you made in Automator.
Too many icons, too little time, what do we call them all?
So are these the hoops you jumped through? You made the app in Automator (you made sure you clicked Application in the template window), from the Automator Save menu saved it somewhere and named it, enabled the AppleScript menu from AppleScript Editor, opened the Scripts Folder from the AppleScript menu, then either placed the app there or made a new folder called "quit all apps" and moved the app you made into that folder?