To analyze the usage trends and performance health of your flows, access the new Flow Execution event type in the EventLogFile object.
Where: This change applies to Lightning Experience and Salesforce Classic in Enterprise, Performance, Unlimited, and Developer editions. This event is available in API version 53.0 and later but not in the Event Monitoring Analytics app.
Who: This change is available to customers who purchased the Salesforce Shield or Salesforce Event Monitoring add-on subscription and use the EventLogFile object data to monitor events.
Analyze Your Flows in the Flow Execution Event Type (salesforce.com)