Re: Quite a blast radius!
I've used only linux for almost 20 years now, and in IT consulting have to exchange files regularly with clients that of course only use MS Office. OpenOffice worked well enough mostly, and now with current LIbreOffice have almost no issues with import/export of native docx/xlsx files. Of course MS Office supports native odt and ods files for Word/Excel native import, which works well too, and so does even 365 online word/excel.
Give it a try, I think you'll be pleasantly surprised these days. The great equalizer is export to pdf if nothing else, which I tend to do for formal docs anyways.