Office isn't "cool" or anything, but people definitely seek it out. No competitor comes close to Excel, Word, or PowerPoint right now.
Don't they? For 99% of what people do, Pages, Numbers, Keynote, and LibreOffice equivalents will do just fine. Heck, Google Docs will do just fine.
For PowerPoint and Excel, I strongly disagree. People do horrific things with Excel that I think are far beyond its intended usage, but they love it for that. You can't pry Excel away from people in finance and a lot of quantitative/non-programmer roles.
Word is more debatable. Yes, if you use it just for taking notes or something, the alternatives are fine.
But if you want to make a nice-looking document, Word is still just a lot better. I've never seen a fantastic Google Doc, for example, even that my company's designers have worked on.
And LibreOffice is another, older generation of UI/UX that is far behind Office at this point.
Whereas Apple built their 700M from nowhere (near bankcrupt sub-2% market share in 1997, starting building their subscription offering past 2007, and more seriously, past 2012 or so).