Zoom Event Session - Attendees Showing Up As Guest

[KatzChwat]

Is there a way to prevent attendees from showing up as "guest" during the Zoom Event Session? I toggled every option that I believe is available. It would not be ideal to expect everyone to register with a Zoom Account in order to prevent this. Is there another way? 

As a presenter, engaging with attendees, it's difficult to properly engage when half the attendees are labeled as Guest.