Moving GTK-CSD to left 

DzEN/DzEN @ 11 October 2019 

CSD Left Like MAC for GTK

Moving GTK-CSD (gtk3-CSD) close-minimize-maximize button to left for current user:

open ~/.config/gtk-3.0/settings.ini and add line:

gtk-decoration-layout=close,minimize,maximize:menu

then logout and login again.