gnome-text-editor 45.0-1 (s390x binary) in ubuntu mantic

 GNOME Text Editor is a simple editor for GNOME focused on being a good
 general purpose default editor.
 .
 It works hard to keep track of changes and state even if you quit the
 application. You can come back to your work even if you've never saved
 it to a file.
 .
 It is simpler than gedit.