You’re missing the point, if you get a document from a MS Office user you can’t simply view it or print it and assume the result will be what the user intended it to be.
You’re missing the point. You can’t assume that even if both use MS Office, either. Cause one of the users could have changed a setting, or use Office Online, or Office for OSX, or an older version, all of which aren’t fully compatible.
MS breaks these things all the time between versions too, without even telling you they’ve updated your Office.
Again, if layout of your end product is important, don’t share .docx files.