#4 is wrong.
$ gsettings get org.gnome.desktop.wm.keybindings switch-input-source "['<Mod4><Hyper><Super>space']"
$ gsettings get org.gnome.desktop.wm.keybindings switch-input-source-backward ['<Shift><Mod4><Hyper><Super>space']
They look good to me.
#4 is wrong. desktop. wm.keybindings switch-input-source "['<Mod4> <Hyper> <Super> space'] " desktop. wm.keybindings switch- input-source- backward ['<Shift> <Mod4>< Hyper>< Super>space' ]
$ gsettings get org.gnome.
$ gsettings get org.gnome.
They look good to me.