I also have the same problem.
$ gsettings get org.gnome.settings-daemon.plugins.xsettings overrides {'Gtk/DialogsUseHeader': <0>, 'Gtk/ShellShowsAppMenu': <0>, 'Gtk/DecorationLayout': <'close:menu,maximize'>}
I also have the same problem.
$ gsettings get org.gnome. settings- daemon. plugins. xsettings overrides eHeader' : <0>, 'Gtk/ShellShows AppMenu' : <0>, 'Gtk/Decoration Layout' : <'close: menu,maximize' >}
{'Gtk/DialogsUs