Munich was widely cited in open-source circles not for their wonderful beers, food and Oktoberfest, but for their LiMux project whereby their city government switched away from using Microsoft products to using Linux and free/open-source software.
LiMux origins date back to 2003 while the transition had ramped up in 2006. More than one decade later, it's looking like the current government is interested in switching away from their desktop stack, which includes Ubuntu, KDE, and LibreOffice components, and back to Microsoft products.
There is a proposal moving ahead for going back to Windows by the end of 2020. Details on that can be found via our friends at Heise.de (and the English translation).