Is VPN a reverse proxy?

Could you please clarify the distinction between a VPN and a reverse proxy? Are they interchangeable, or do they serve different purposes? As I understand, a VPN creates a secure, encrypted connection between a user and a network, while a reverse proxy acts as an intermediary between a client and a server. Is it accurate to say that a VPN is not a reverse proxy, but rather a type of secure network connection? Could you elaborate on the specific differences between the two, and how they might be used in different scenarios?