I think it's easier to use a proxy server than a VPN. Proxies, like VPNs, allow you to bypass a site blocked in the country or maintain anonymity on the Internet. Also, the proxy is protection against "vampire" scripts that collect information about users for commercial purposes: displaying personalized ads, mailing lists, analyzing behavioral patterns, etc. If you use the
Facebook proxy that works about it, it will be enough to ensure your security on the Internet.