In your production settings, you can find an overview of all the workflows that have been started, completed or are in an error state within a production.
Firstly, go to your Production Settings as shown below.
On the left side, choose 'Workflow Overview'. Initially, the screen will be blank. You will need to filter on the status and choose 'All workflows' to get your desired overview.
You can also filter on 'Started' for example to see the workflows that are currently running.
If you filter on all the workflows, you will get a view such as the one below. You will get useful information such as the type of workflow, but also when it has been started, the current status and who has started this workflow.