Language
The language of the login screen initially depends on the language set in the browser. If Keycloak does not support the set browser language, the default language will be used.
After the first login, the language of the logged in user is used.
In e-mails (e.g. "Forgot password") the language set in Keycloak for the user is always used. If no language is set for the user, the default language will be used.
The administration interface ("Administration Console") is only available in English, regardless of the user language.