Business version users (Microsoft 365) are already seeing the change.
The new look brings a new sidebar, which contains all the features that were available in the applications bar. There are also new icons for some of the actions such as the "new document".
- Updates Lumia (@ALumia_Italia) July 6th, 2020
Additionally, there are new controls in the application UI.
The main section of the page is only used to display your recent files, but you can also find a list of recent folders in OneDrive below, as well as links to SharePoint. This particular change (SharePoint) will not appear on regular user accounts that do not have a business package.