The services that are marketed as being VPN providers are actually selling a very restricted form of VPN where they create for you a very small VPN between you and some other node in their fleet and then you route your traffic through that node.

It would be more correct to call such a provider a secure (two-way) proxy service (and in the past people did), but for some reason they went with VPN and that stuck.

Mycoria is basically the textbook definition of a VPN.