Wouldn't it be darn nice, though, if there was a universal mechanism for apps to announce which shortcut they have available and a centralized way to configure them all?

For example, I was able to assign copy/paste keys to the corresponding actions in the GTK keybindings, and it worked like charm, except in Chrome. That is, in Chrome, web content respected these keybindings, but the browser UI didn't. So I could use the keys on textareas and inputs all I wanted, but paste into the address bar? Nooooo, BECAUSE FUCKING CHROME HAS THEM HARDCODED per platform!

(However, in Firefox it worked just fine across the whole UI.)