One of the things that many educators (and researchers) are hearing is that students are reluctant to turn on their cameras because of concerns about being judged - either by their peers or by their teachers - on their appearance or their environment.
A proposed solution to this concern is to allow users (e.g. students) to control who (e.g. everyone; instructor; selected people) gets to see their camera feed. In theory this might promote a sense of control which can lead to a sense of safety and then to participation. From the perspective of the teacher, having more active cameras makes it a lot easier to “read the room” and improves their experience (and likely that of the rest of the class).
So … not having looked into the architecture of Jitsi Videobridge(?) would it be possible to allow individuals to control who sees their camera feed? A first implementation of this feature would likely be “Just to the Organizer” and “To Everyone”, with the ability to specify a list of other participants as a possible extension.