CORRECTION FOR THE NEWS VIDEO:
Looks like Denmark's Ministry for Digitization is not in fact moving to Linux right now.
The original interview given by the Danish Ministry said that they planned to move to Linux, but this apparently was a misunderstanding between the Ministry and the outlet.
They've since corrected the article, they're moving to just LibreOffice, but not Linux, at least not in the near future.
Source for that correction: https://www.computerworld.dk/art/291812/caroline-stage-udfaser-microsoft-i-digitaliseringsministeriet-jeg-glaeder-mig-meget-til-at-se-hvordan-det-fungerer-i-praksis