The Overview page allows you to dig deeper in the workspace and get specific insights. It does so by offering a rich selection of filters:
My Tasks and All Tasks
Due Date (Overdue, Due This Week, and Due This Month)
Status (Active, Completed, and All)
You will find these filters right next to the left navigation when you click the Overview icon
Click on Reset to Default at the bottom of the filter panel on the left to clear all the filters.