Oniux introduces a novel approach to run any Linux application with enhanced privacy by using kernel-level isolation with Tor. This method aims to improve security by anonymizing internet traffic. Users have raised concerns about whether the applications, such as HexChat mentioned in their example, will operate under the user's configurations, potentially leading to leaks of sensitive information such as IRC usernames or cookies if not properly managed. This highlights a significant challenge regarding user awareness and configuration management in privacy-focused applications.