Things like Office 365 are also still pretty much a hard requirement at lots of offices. More enterprisey projects can definitely require working with all kinds of moderately complex technical or non-technical documents in Word or Excel.
It may be possible to get it running on Wine or CrossOver Office, of course, but most generic Windows-centric corporations probably aren't going to buy Crossover, and "I can't send you a commented version of this document by today because I'm having a random compatibility issue with this non-commercial software combination that other Normal People don't need" isn't going to make you popular.
It may be possible to get it running on Wine or CrossOver Office, of course, but most generic Windows-centric corporations probably aren't going to buy Crossover, and "I can't send you a commented version of this document by today because I'm having a random compatibility issue with this non-commercial software combination that other Normal People don't need" isn't going to make you popular.