Hello -

It seems that Teams Webinars (created from Teams) has updated functionality that is not included in the Teams Webinar that gets created through Event Management of Customer Insights - Journeys.

For example, Webinar created through Teams includes a "Start Meeting" option, records automatically when started and also includes a Q&A.  

These should all be included in the webinar that is created through Event Management in Customer Insights - Journeys.