That being said, it apparently does not affect Mullvad apps on any platform other than iOS (Apple does not allow fixing it on iOS). I suspect other serious VPNs are also not vulnerable outside iOS, since it is prevented by simple leak prevention mechanism.
You made her title so convoluted I am now unsure if she is expert fact checker who combats disinformation or expert on spreading disinformation while pretending to be a fact checker. 🤔