For workplace collaboration, sharing is the highlight, not formatting (unless you're designing for paper-based publication). I have to say the few times I encountered the browser-based Word 356, it felt like total shit. Cannot imagine anyone really using it if they have the desktop app installed. Seems like a checkmark product and the real users end up using the full app version. I've even heard this from friends at Microsoft.
From what I've tried the desktop apps themselves do cloud-driven collab just fine, so I don't really see a reason to use a browser app when native's available. May just be me seeing things, but the native-to-native sync seems faster than with the web apps. Sadly that means sharing is a bit less convenient than just click link to open.
