Is it an invasion of privacy for hotel staff to be photographed while going to the toilet?

If the photos taken by the staff involve your privacy, the other party may be suspected of violating your privacy. You can ask the other person to delete the photo and apologize. If economic losses have been caused, the other party may be required to bear the liability for compensation. If the staff's behavior is inspired by the hotel and is an act of performing duties, the hotel can be required to bear the corresponding liability for compensation.