Using KDE Neon 5.13, default settings. CTRL+Q doesn't close the touchpad settings window if the settings window is launched directly from krunner/applications menu.
That's actually kcmshell5, affects all dialogs.
*** Bug 391618 has been marked as a duplicate of this bug. ***
To reproduce, need to launch module directly: `kcmshell5 kcm_touchpad`. Launching from the menu opens the full systemsettings window, in which Ctrl + Q works.