But that doesn't make the interaction anti-competitive; it makes them a nice product. It wouldn't make sense for MS to allow, say, other clients to MS Word to interact with their cloud, that would be anti-competitive in that they're actively shooting themselves in the foot while doing it. I don't see why this is a bad thing.
And in general, the fact that we're even converging from multiple services towards one is purely historical. The reason MS word & excel are two separate programs rather than one is due to the tech landscape on the past. Google Docs or Notion or Coda are all supersets ot Word vs Excel, using newer tech & hardware to provide a more unified experience, which IS in the interest of the user.
