Do you mean to pass the real world through, or for scanning the world? If the display is see-through - perhaps with a removable view shield for switching AR/VR

Do you mean to pass the real world through, or for scanning the world? If the display is see-through - perhaps with a removable view shield for switching AR/VR - you can have pass-through without a camera. Like magic leap, but without the magic "black pixels" tech. Alternately, if it has lidar you could display a wireframe / point cloud version of the environment. I don't think people will consider a lidar scan to be "a picture of me," even if it actually captures more detail. Alternately again, it could have a camera but just never expose that feed to the real world or allow recording. It's their own closed hardware after all.