I wasn’t aware that this was an old school Apple vs Microsoft debate. But alas.
I don’t know if you’ve actually used the latest Office for Mac. It’s better than the older versions, but it’s still obvious that MS isn’t fully proficient in macOS development. For starters, the interface doesn’t respect the scaling settings on my 5K iMac. I’d expect that sort of shoddy UI from Steam or something.
The fact that iTunes for Windows is trash doesn’t change this fact at all, so I don’t knkw what you’re getting at.
Microsoft actually ports their software to Mac, using native APIs and idiomatic software design, for the platform:
http://mac.softpedia.com/get/Business/Microsoft-Office-2011....
Meanwhile, Apple brings the exact same software as is on macOS to Windows, with no thought to integration:
https://www.windowscentral.com/sites/wpcentral.com/files/sty...