> In November 2017 Munich city council decided to revert to Windows by 2020 with all systems being replaced by Windows 10 counterparts. Some of the reasons cited were adoption and users being unhappy with the lack of software available for Linux. A report commissioned by Munich and undertaken by Accenture, found the most important issues were organizational. > > In 2018, journalistic group Investigate Europe released a video documentary via German public television network ARD that claimed that the majority of city workers were satisfied with the operating system, with council members insinuating that the reversal was a personally motivated decision by lord mayor Dieter Reiter. Reiter denied that he had initiated the reversal in gratitude for Microsoft moving its German headquarters from Unterschleißheim back to Munich.

Basically corruption.

Source: https://en.wikipedia.org/wiki/LiMux