After the upgrading of the Tuxedo Infinity Pro14v4 from Ubuntu 20.04 LTS to Ubuntu 22.04 LTS the German keyboard layout cannot be used in some applications like emacs GUI, Visual Code or IntelliJ. In other applications like LibreOffice, GEdit, Terminal and even emacs non-graphical the German keyboard layout works. Changing the keyboard layout via the top bar icon has also no effect in some applications.
Ubuntu Settings: Input Sources: German (first) and English Settings > Keyboard > "Use the same source for all windows" is set.
The problem seems to be user-specific. With another user it's working.
Does anyone have an idea ?