Where Exceptions workflow has been enabled, users will find there are a number of different ways to view both the exceptions for a particular process, and also across multiple processes.
Select the Exceptions button at the top of the screen, you will be navigated to the Process exceptions screen. Here you will find an overview of all exceptions across all runs of the process.
The exceptions can be viewed by age or by run.
Or for a 'Global' exceptions view you can select Exceptions from the top of the screen.
This will navigate you to a screen displaying the workflow items across all processes you have visibility of.