Also, you might moan about cloud lock-in, but collaboratively editing documents in Office 365 is a vast improvement over emailing documents around and clumsy manual version management[0]. I would never go back.
[0] Incidentally, collaboration is the one advantage that GDocs used to have over Microsoft Office, but that's long since gone. Office is so much more capable than GDocs that I find it baffling that people still choose the latter. The only thing Google does better, at least in some ways, is email: becuase Gmail's search is better, and it doesn't bog down overall in the many ways that Outlook does. Teams, as much as it pisses me off on a daily basis (and it really does), is still far better and more reliable than Hangouts.