if I am using a VPN on an insecure network that is available for guests, can my device still be hacked?

I have additional information to confirm this information.

Hey, For starters, a VPN encrypts all of the data sent from your device via a public WiFi network. Even if the data is intercepted, it will be meaningless because the hacker will be unable to decode it as the data is encrypted. Your device's IP address is likewise hidden with a VPN.