Microsoft OneDrive & SharePoint Library dropdown menu

 this change is limited to OneDrive and SharePoint websites and you'll notice:

• When a user selects a team or site within OneDrive, they will be directly brought to the default document library instead of choosing from a list of document libraries. They can choose a different document library by using the library dropdown.
• When a user selects a document library within SharePoint, they will be able to choose a different document library using the library dropdown next to the breadcrumb.
• Where applicable, users will still be able to click the site name in the breadcrumb to see the full list of document libraries.

Use the library dropdown

Then choose a different document library

Note: Microsoft is planning future work to bring this library dropdown to OneDrive mobile apps, Office, and Teams but currently do not have a timeline to share.