We'll have to see how long it takes, as it did with LiMux ( https://en.wikipedia.org/wiki/LiMux ) when Microsoft Germany headquarters magically moved to Munich and everything got back to running on Windows again.
> The city reported that due to the project, it had gained freedom in software decisions, increased security and saved €11.7 million (US$16 million).
That's kind of nice. An org that I worked for gave everyone LibreOffice installs by default and if you needed any of MS offerings you could just ask for a license for those. Most people were just fine with LibreOffice. Depends on what you're doing with said office suite, though.