> Office for Linux would be easy, but that’s not going to happen.
I have a hard time believing it would be easy. I use both Office for Windows and Mac, and the differences are great enough that I'm guessing that there's a huge amount of divergent code in the UIs. And both would be written against GUI toolkits that are not present on Linux, so a Linux port would be yet another major effort.
That said, I think that you're right that it's not going to happen. My understanding is that a major consideration for anyone looking to port a commercial desktop product to Linux is that Linux desktop users are, in the broad, very hesitant to spend $100s on a commercial product when open source alternatives exist. My guess would be that a Linux port of Office just isn't a proposition that is likely to generate positive profits.
Office Online is the desktop Linux user's access to Office. Enough people use Macs that it makes sense to invest into the effort, else some other vendor will gobble up Office's marketshare. I use Office Online and LibreOffice all the time on Windows 10, some documents it's just better to have guaranteed formatting compatibility with the majority of documents which are put out through MS Office. I would personally just continue the same pattern if I were a desktop Linux user.
I have a hard time believing it would be easy. I use both Office for Windows and Mac, and the differences are great enough that I'm guessing that there's a huge amount of divergent code in the UIs. And both would be written against GUI toolkits that are not present on Linux, so a Linux port would be yet another major effort.
That said, I think that you're right that it's not going to happen. My understanding is that a major consideration for anyone looking to port a commercial desktop product to Linux is that Linux desktop users are, in the broad, very hesitant to spend $100s on a commercial product when open source alternatives exist. My guess would be that a Linux port of Office just isn't a proposition that is likely to generate positive profits.