There’s a similar software called zerotier that only routes traffic you want across. You select an IP range (for instance 10.144..) and it gives your computer a new address. For my main computer let’s say it’s 10.144.168.128. The only traffic routed over the vpn is traffic addressed to that address. You can append the port to web traffic like 10.144.168.128:8010/zm/index.php (zoneminder used as an example) and it would use the vpn for that connection but nothing else.