Libre would be fine for most people but brand recognition and file compatibility are the big things that Office 365 has going for it.

A lot of them. Have you tried to fill out forms (for stuff like homeowner taxes, personal income tax, etc) prepared by the government office in MS Word using LibreOffice Writer? It doesn't work at all, and if it at least opens, the document as well as output is completely fucked.

Anything a tiny bit smarter than your usual document (with scripts and/or macros) won't work too.

I mean, in the past 3 years I've sold a home, rented a place, and bought a home, and filled out my taxes and other forms from .gov websites and haven't had an issue to be honest.

Thank the US government, they're pretty good with the digital things. The EU governments are much worse with computers - Word documents and Excel tables that don't work in LibreOffice are usual here.

Yep. I fixed it with Latex

How did you get VBA working in Latex?