"If you need to edit things in Drive, use the Drive app."
There are some use cases where the QO app makes sense, but its solving a fairly narrow problem that doesn't apply to most users.
> Well, does the icon look like--no, never mind, the icon is the same for both, four white lines in a blue square
What are you talking about? The icon for Word files in both the QO UI and the Drive app UI is a big blue W on a white square, and is nothing like the 3-long-1-short white lines on a blue square icon for Google Documents.
> Umm, well, open it in one of them, and if you can't edit it, open it in the other one.
The Drive edits Doc/Docx files; if for some reason you don't like using the Drive App to do that, you can switch to QO from the document opened in Drive by using the "Open in..." menu from Drive to open a document in QO.