First of all, the notification system is in place to automatically warn anyone who needs to sign a document. You can see a summary of all your tasks in MYWORK Overview dashboard.
Regarding the list of Documents to sign, a specific page exists, summarizing it as well:
If you want to see the status of all the pending signatures from document you generated yourself, you can always see them in the NOTIFICATION Dashboard:
Last but not least, in order to get an overview of the status of all notifications, you can look in the NOO Dashboard (Notification Overview) and filter per user for example or type of notification via the search box: