Preferences Variable for Language

I would like to know where the 3DExperience language settings are saved or via which settings file. When I open the 3DExperience via the app and change the language, the language setting is saved and when I open it again, the language setting remains. But when I go to the 3DExperience via the dashboard afterwards, the change is not applied. Are the language settings not saved in the UserSettingPath? Or with which file? Or where else are they saved?

Best regards,

Finn