I like the idea of a Favorites area that will jump to a specific folder in my OneDrive account. Could be down on the bottom bar next to Photos.
There is no Favorite folder option (like ‘starred option in Dropbox)- through which one can easily access frequently accessed folders/files in One Drive. The lack of this feature makes it difficult to mark frequently visited folders/documents easily so that it can be retrieved easily. For users whose primary device is iOS iPad lack of this feature reduces productivity and diminishes the UX.
Favorites would improve usability enormously for me. They should include both folders and files. A new entry in the navigation on the left side should be added, see GDrive.
It would be nice if this included "Shared with me" files and folders as well.