Teams-based webinars are a popular way of hosting events like product briefings or announcements. Behind the scenes, the Microsoft 365 substrate stores information about webinar speakers, attendance, and event details as lists in the meeting organizer’s OneDrive for Business account. The information stored in OneDrive is indexed and available for eDiscovery. It’s a great example of the Microsoft 365 ecosystem in action.
https://office365itpros.com/2021/09/16/how-teams-makes-webinar-information-available-for-ediscove
