Digital sovereignty. Even Europe is looking at replacing Windows now. I know that attempts have been made before, but there are stronger pressures now and there are better alternatives for Windows-only workflows.
Most new apps are web based nowadays. Many companies are even ditching the desktop Office apps now (which is insane for its own reasons, but still). Engineers under 40 prefer Python over Excel. Word is good for WYSIWYG printing, but with a small government program it should be possible to make that irrelevant quickly and ditch PDFs along with it.
I'm hopeful.