Yes, there are third-party programs available that can help you restrict apps on Windows 11 from receiving or transmitting data in the background. One popular option is a firewall software that allows you to control the network traffic of individual applications.
Firewall software like GlassWire, ZoneAlarm, or Comodo Firewall can help you monitor and manage the network activity of your apps. These firewalls can block incoming and outgoing connections for specific applications, giving you more control over which apps can access the internet.
Additionally, you can also use built-in Windows features to manage app permissions. In Windows 11, you can go to Settings > Privacy & security > App permissions to customize which apps have access to your camera, microphone, location, and other sensitive data.
While these tools can help you restrict app data usage, keep in mind that some system processes may still require internet access for proper functioning. It's essential to carefully review and understand the permissions you are granting to ensure that your system operates smoothly while maintaining your privacy and security.