Maybe that wasn't the original intent, but it's a designed and supported configuration. Many places don't want a fleet of Windows laptops to become network brid

Maybe that wasn't the original intent, but it's a designed and supported configuration. Many places don't want a fleet of Windows laptops to become network bridges to their intranet. The default configuration for most VPN setups is to route all traffic. If you want to selectively route traffic, you have to specifically set up a split tunnel. While you could only route client traffic to an intranet endpoint and prevent access to any external services, that wouldn't be very practical in most deployments so a proxy is added on top. This type of deployment is common and has been used for decades.