In the desktop version (0.5.9, Linux), ctrl+w closes the app window which isn't useful (e.g. because Logseq does not minimize to the system tray). "Quit Logseq" already has the ctrl-q shortcut.

Also, it isn't mentioned in the Keyboard Shortcuts docs. (though ctrl+q isn't either, see #3966)

The ctrl+w shortcut seems to come from the electron default menu, see e.g. electron/electron#5951.

What should it do instead? Probably nothing at the moment, maybe "close tab" in case Logseq introduces tabs...