I believe it has no localization support, but the language is clearer and the command it tells you to run is much simpler. A big problem with it is that Ctrl-Alt-F2 does not actually get you to a working TTY on many distros – e.g. on Fedora TTY1 is SDDM and TTY2 is the DE – and the error message is not adjusted based on which TTY is which.
For comparison here’s the error message KDE displays in the same situation: https://www.reddit.com/r/kde/comments/15477a5/screen_locker_is_broken/
I believe it has no localization support, but the language is clearer and the command it tells you to run is much simpler. A big problem with it is that Ctrl-Alt-F2 does not actually get you to a working TTY on many distros – e.g. on Fedora TTY1 is SDDM and TTY2 is the DE – and the error message is not adjusted based on which TTY is which.