

In Munich “only” the citiy switched to a own Linux distribution named “Limux” with extra software (Wollmux) for Open Office to manage templates for all departments. After a few years and a lot of progress the new mayor spread doubt (e.g. with a study ignoring some costs) about the project and forced to switch back to Microsoft. Coincidental Microsoft Germany moved their Headquarter a few kilometers from outside Munich to the administrative area of the city.
Im many cases it can be cut down to different user experience.