Microsoft Stream (classic) Video Inventory

With Teams Meeting Recording (TMR) soon moving to SharePoint/OneDrive and Microsoft Stream (classic) being retired sometime in the future, we would like to generate and export an inventory report of what's out there.  This will allow us to review the content before they are migrated to the new Stream.  I have not successfully been able to find anything in the admin portal nor online concerning this.  Any guidance in generating and exporting an inventory report would greatly be appreciated.