ISO standard followed by MS Teams

Hi adam deltinger 

MS Teams generates "Desktop-config.jason" file at "%appdata%\Microsoft\Teams" which acts as a control file for MS Teams. There is an entry as “Currentweblanguage” in this file which stores the language code, MS Teams being used in. Format of this language code is "Language code-country code". For example for English language and for United States, the language code would be "en-us". When MS Teams is installed in Swedish or Norwegian, it is generating wrong language code. It should generate "sv-se" for Swedish and "nb-no" for Norwegian but it is generating "sv" for Swedish and "nb" for Norwegian. Because of this issue we want to know what ISO standard is followed by MS Teams for this language code.