"Show Desktop" doesn't work unless manually reset inc its existing key bindings
Fresh install of 19.10, Super+D doesn't do anything. Look in keyboard settings, not present, nothing bound to Super+D I don't think, look in Window Manager, show desktop is there, bound to Super+D, but it doesn't work. Edit it, bind to Super+D (i.e. the existing binding), it works. So I don't know what effect manually force binding it does, but it evidently works. Suggesting that the entry in window manager saying it's already bound to super+D is wrong.
Also, related but more discursive/meta: is there any scope in the long term to bundle the window manager shortcuts into the keyboard menu? Seems so unintuitive to have the same functionality spread across two places. Similarly (even more off topic!) display/powermanager/screensaver.