ProtonVPN (Windows) Free Edition

[tiggs]

Personally, I don't use any, but I'm curious: what are VPNs used for?

Put very simply, VPNs hide your internet traffic from prying eyes by creating a tunnel that you send your traffic through rather than directly accessing the website directly from your computer. They’re primarily used for privacy and security. If you want another analogy, think of it like package forwarders or PO Boxes.