Hello, @Stevopress! Glad you’ve joined the Zoom community; welcome aboard!
If you host a Zoom meeting with the Large Meeting add-on set to 3,000, attendees can turn on their cameras as long as the host allows participant video in the meeting. Once the add-on is purchased and assigned to the host, meetings you host can support up to 3,000 participants, and participants can use their cameras if permitted by the host.
To ensure attendees can use their cameras during the meeting:
- Start the meeting as the host.
- From the meeting controls, select Security.
- Confirm that the Start Video option is enabled (checked).
- Once enabled, participants will be able to turn on their cameras throughout the meeting.
One thing to keep in mind: Even if thousands of attendees have cameras on, no one will be able to view all 3,000 video feeds simultaneously. Zoom's gallery view shows only a limited number of videos per screen/page, and participants would need to scroll through many pages of video tiles.
For more insight into the topic, you may refer to the articles listed below:
Purchasing and assigning the Large Meeting license
Changing security settings in a Zoom meeting
Enabling or disabling participants' video