I do not use Ubuntu, but I use Mate 1.24.1 on debian bullseye (testing). For me too, pressing mod4+t open mate-terminal. mod4+t does not appear anywhere in "keyboard shortcuts". I tried to assign this shortcut to another command, but that did not work.
I do not use Ubuntu, but I use Mate 1.24.1 on debian bullseye (testing). For me too, pressing mod4+t open mate-terminal. mod4+t does not appear anywhere in "keyboard shortcuts". I tried to assign this shortcut to another command, but that did not work.