I've noticed that when I login to a guest session in both Cinnamon and Xfce, the following useful warning message pops up immediately after login:
However, it doesn't appear when logging into a guest session in MATE.Temporary Guest Session: All data created during this guest session will be deleted when you log out, and settings will be reset to defaults. Please save files on some external device, for instance a USB stick, if you would like to access them again later.
Is there a way to get it to appear in MATE?
Thanks