Do you know any schools, organizations, or public administration that is using Linux? I have heard something about the Tirana Municipality but I am not sure what is it exactly (maybe just NextCloud and LibreOffice, but no Linux Desktop?).
In Italy there is a splendid example in the province of Bolzano, where 80 schools have been using Linux for 16 years now. This presentation has more details about it.
I think there is something similar in Greece as well but I don’t know any details.