Not defending Microsoft in any way but my guess of what's happening:
* Too few people use Firefox to access Office online, they don't care
* Your organization is too small for them to care
* Too few people use Firefox to access Office online, they don't care
* Your organization is too small for them to care
It's pretty much the majority of their Linux users. Firefox is often the default browser on many distros due to the Chrome/Chromium data sharing concern.
> * Your organization is too small for them to care
Then why even have a business tier if not for the support?
The result of Microsoft's current stance is simply that users look elsewhere. I mentioned Overleaf, but Google Docs is also a solid choice. For local editing we are using LibreOffice.
Sure, but for heavy users of office 365, how many use Linux to begin with?
"yes, your car exploded, but you were driving on a dirt drive way. it works just fine on the highway"