NewOutlook · Microsoft 365 · Teams calendar
Outlook: Change the organizer of a meeting
New capability to transfer meeting organizer ownership to another person in the organization. The new organizer must accept the transfer. Available in Outlook for Windows, web, and Teams calendar.
Microsoft's description
Transfer ownership of a meeting or recurring meeting series to another person in your organization. The new organizer must accept the transfer before it is completed. This helps maintain continuity for long-running meetings while preserving the existing event for attendees. Available in Outlook for Windows and web and Teams calendar.