From the 'Actions' dropdown menu, we can see that we have the ability to export this workflow, manage versions of this workflow, save it as either a new version or a clone of the existing workflow, or we can delete the workflow.
These actions make it easy for a new user to start with any built-in/system workflow and clone it to use as a template, so that we can understand how to map workflow and task inputs/outputs. Users can also leverage having built-in versioning of workflows so that we can always keep a tested and validated version of a workflow, which can also be set as the default version, even while we are working on changes.