Why does Surfshark indicate that a different VPN is detected?

Surfshark may indicate that a different VPN is detected because the software has identified that another VPN application or service is currently active on the device. This can occur if a user is running multiple VPNs at the same time, which is usually not recommended due to potential conflicts and performance issues. Surfshark might provide such a notification to alert users of these potential conflicts and ensure optimal functionality of its own service. Additionally, this warning serves as a security feature, making users aware of any unauthorized VPN services that could be operating on their system, potentially compromising their internet privacy and security.