In the video, the whistleblower also claims the UN argued in court that it has a right to lie about these activites to its member states.
This is misleading. The UN was responding to China asking if this or that person would be present in this or that event. The people concerned were outside of China and already known to China, and their presence at any event wasn't a secret.
The UN said that they did so for other countries so.
i24news.tv does not seem like a reliable website for the claim in the title, which is probably why they don't substantiate them.
I don't think I've ever seen another HN post where every single comment was downvoted before. I know it's not the done thing to discuss downvotes here but it struck me as interesting given the subject matter of the article.