Workspaces is a renamed pattern UI pattern from patterns "scrollable lists". I don't think the pattern only applies to lists hence the new name.
Workspaces is a horizontally scrolling composite component that consists of tabs and data container, often a list. This component provides easy navigation between a lot of data that is hierarchically on the same level.
Pattern card
Problem
Displaying a lot of data and user navigation between the data is not simple on a small smart phone screen.
Read more: Android UI Design patterns