The central question revolves around the persistence of the TikTok application following an iOS update on an iPhone. Typically, updating the operating system does not inherently remove installed applications. Apps, including social media platforms, remain on the device unless explicitly uninstalled by the user prior to or following the update.
Maintaining the latest iOS version offers several advantages, including enhanced security features, bug fixes, and potentially improved app performance. Historically, app compatibility issues have occasionally arisen following major OS updates. However, developers generally release updates to their applications to ensure continued functionality with the newest operating systems. Failure to update the OS can leave devices vulnerable to security threats and may eventually lead to incompatibility with newer app versions.