Guests to a Microsoft Teams Live Event do not have a calendar option in Teams
When logging into the Microsoft Teams desktop application guests to a Microsoft Teams Live Event do NOT have a calendar option in Teams. NON Guests who are presenters or producers can easily find the join link on the calendar, guests don't have this option. One choice for getting them into the webinar is for the host of the event to ring the guest from the webinar while they are in the desktop Teams application so they get a notification to join.