2 main reasons in my view:
- windows is the de facto standard for desktop ans users management. So each corp has at least one guy used to the interface to dofirst-level debug
- windows comes with support, not linux. So corps don’t want to employe one Linux admin “just in case”. That’s the main reason I keep hearing from sysadmins I know
It’s rather the other way around, Word is not 1 to 1 compatible with LibreOffice Writer when it comes to document editing. Writer is far better on that aspect.