Earlier quoted context omitted.
Sadly in small business Microsoft have a lock because no SMB wants to be the awkward outlier whose IT makes them hard to do business with. For example, to be that supplier that whose documents never quite look quite right or who always struggles with the docusign /PDF /email /spreadsheet /whatever whatever. For an SMB, fitting in with the de facto IT herd that is represented by your customers and partners is essentia…
Generally nobody should exchange Office docs anyway, I find it much more professional to exchange PDFs. I use MS arial so my PDFs made with LibreOffice look immaculate on any device. I think people are really shit for being so attached to their stupid office. I could not sell my dad on LibreOffice though. He'd rather pay 100 EUR/yr than learn to use new software.
Linux machines don't normally include Arial due to the license, and only PDF/A includes the fonts used in the document.