trouble apllying spotlight to user´s at meeting

I am the organizer of an event where children and teenagers receive awards for their achievements in artistic and calligraphy work within Japanese language schools.

This event is currently held in a hybrid format, that is, there is an in-person awards ceremony that takes place on a specific date, while those who cannot attend in person are invited to participate virtually on the day of the event.

The problem lies in the virtual format, because the idea is for them to interact in some way, so at the awards ceremony those who came virtually appear when we call their names. Of course, here part of the organization moves to use the spotlight to move the camera to the winners and make them appear. In practice, for operational reasons, many of the winners are children, and they enter via cell phone, which makes it impossible in many cases to get their attention due to any logistical setback, because the chat tab disappears on the cell phone, and sometimes the parents responsible are not paying due attention. We tried to organize through breakout rooms, which became a palliative solution, because we solved it by putting a kind of filter where we organized the winners by name and verified their identity (with the occasional child who couldn't use Zoom and we couldn't call them at the awards ceremony, unfortunately), but the experience is not satisfactory. The fluidity is still better in person, and the virtual one still suffers, either due to the timing or the still low engagement, which I think is unfair considering the existing potential, but maybe it's because we're having difficulty combining the in-person + virtual operation. I would like a suggestion on how we could improve, perhaps by using some onboard Zoom tool?