In the old viewer I had it set to quit when Escape was pressed,
In the new viewer when I hit Esc I got the viewer controls. To me Escape is get me out of here, not let me in there
On Windows the menu key is right click - everywhere, so I don't need a special key for viewer controls.
So I removed the Esc for the Show Viewer Controls shortcut, and went looking for a shortcut for Quit - but I couldn't find it - if I could have I would have set it to Escape
For me it's not a die in a ditch issue, as I'm also accustomed to using Alt+space, C.
BR