Once you have created your sprint, you can view the details for that particular sprint to learn more about individual tasks, assignees, and their progress. If you scroll to the bottom, you can also see any open pull requests and recent code commits (through the Github integration) in your Progress view.
With this view, you can clearly see what your projected tasks were and where you actually are landing on a code basis. This brings clarity into linking why certain tasks and even requirements are not getting done on a high level based on what's happening day-to-day.
There are 2 ways to access the sprint progress view: