Uses the heavily deprecated XOrg display manager. XOrg has no isolation of windows from each other, meaning any app can record your screen without notice. All XOrg apps can also log keyboard presses arbitrarily. Since all apps share the same display server, they can easy correlate keypresses (text) with what app it is entered in, kinda like Windows Recall. Cinnamon, Mate, and XFCE all use XOrg. Cinnamon still doesnt default to Wayland.