“Experts in Europe warn that these devices are used to record strangers without their consent, possibly breaching EU law.”
“A small LED light is designed to indicate when recording is taking place, but RTBF’s investigators found that tutorials explaining how to conceal the indicator are abundant and easily accessible online.”
Sometimes I have a hard time deciding who I despise more, parasite Mark Zuckerberg or its witless hosts who keep using its products—yes, Zuck’s pronoun is it. Ban Ray-Ban, for frick’s sake.
I think that could fall under “Recht am eigenen Bild” (right to your own picture). It gives you the right to decide how images of you are used. If he profits off of photos/videos of her, she should have the right to sue him. It might also be illegal to publish the videos under GDPR law, especially in combination with more personal information like first name or city.
However, big festivals like the Oktoberfest often have a disclaimer that you agree to being filmed and your picture being published due to TV, press etc. being there. I don’t know how that would work.