You seem to ignore the fact that changes take time.

There are entire governments in the EU with workflows built around Microsoft products that have no real 1:1 alternatives. If a governmental procedure stipulates that a ministry uses Windows w/ Office365, it uses Windows w/ Office365, no room for an argument. If anybody pulls a plug here, the consequences will be unimaginable.

It's nice that a single German state has switched to LibreOffice, but the rest of Germany, or the remaining 26 countries might take years, if not decades, to certify and permit someone else's solution.