For my user case, we design in team and I lead this team.
I try to keep all files organized for my team.
It could be great to reorganize sections on the left bar, as the user want and need it.
When you open the app, you are on the first tab of the list “recent documents”, maybe for some people it’s useful, for me I open lots of files to check them (if we could clear only one recent document and not all the list it could be better).
It could be great to choose this “launch tab” for exemple to open the app on a project folder or on all documents,…
The ability to pin/star some documents in a new section (and as I said in point 1, this section could the moved on the top to be the “launch tab”) I agree with @sonburn
The possibility do have folders and subfolders (but your team is working on it, we’ll see what’s coming)