Following a successful pilot project, the northern German federal state of Schleswig-Holstein has decided to move from Microsoft Windows and Microsoft Office to Linux and LibreOffice (and other free and open source software) on the 30,000 PCs used in the local government. As reported on the homepage...
A good number of European cities and countries have tried Linux and open source software in the past. They use it for a few years and then they have almost always have quietly gone back to MS Windows and Office products.
As much as I enjoy using Linux, (and no, I don't use Arch), and open source for my own needs, I would be willing to bet after a few years, this German state will quietly move back to Micosoft products again.
Its only cheap because its normalized in that domain. As more work is done to iron out bugs and get people in the office space the feature they need on Linux the more experience IT folks will get support.
Its an investment as always. There is no such thing as a free lunch
You have too look at it at scale too, and most places should either be adopting some platform that already does or be planning on scaling some special service they do.
Every Podunk municple probally should have to have a AD expert, a security expert, a hardware/software lifecycle management person, etc etc
That's how o365 can be cheaper total cost of ownership then an army of siloed sys admins, even if the software is at no cost to them.
Its an investment in total operations of the organizations of the state, from the current state of 1990s tech most operate off of to a modern IT infrastructure.
Microsoft certainly tries it's best to keep you locked into their ecosystem by making it inconvenient but not impossible to leave though that's not the real reason, it's security. Businesses and especially governments are scared of nation state hackers contributing malicious code to open source products and falsely assume it's safer to use closed source software because those incidents aren't public. There's so much great software out there I'd love to use and the first question I'm asked when I bring it up is can you prove China hasn't contributed code?
As the result of a change in the city's government, to leave LiMux and at the time, critics of the decision blamed the mayor and deputy mayor and cast a suspicious eye on the US software giant's decision to move its headquarters to Munich.