As a user, when I add a new keybinding, I never know whether tomorrow someone is going to take it. So WIBNI there was a certain set of keybindings that are reserved for users? Packages would never bind one of those keys.
For example, Super+K followed by a letter (not Super+letter) could be reserved for the user. Or all Super+Alt+Shift+... combinations. Or...
Customer support service by UserEcho