Anonymity is good, but a VPN doesn't really help for anonymity. It only prevents some MITM security. The moment you access an NSA data provider, e.g. Gmail, over the VPN, your IP address is immediately correlated in time with your chat activity, and your identity is revealed. I know you mentioned an AI-addon, but there are too many limitations there in terms of the number of models available, usage quota, and API access.

Regarding llama3, it works for some applications, not for others demanding higer intelligence. Surely there will be a llama4 and a 5. They're coming fast.