WireGuard is a connection protocol used in the Windscribe desktop and mobile applications. It is typically faster than OpenVPN (called UDP and TCP in the apps) and more flexible than IKEv2, making it a great option for securing your online activity.
If you want to use the WireGuard protocol in the Windscribe app, go to Preferences > Connection > Connection Mode and set it to Manual. Then select WireGuard and reconnect to Windscribe in the main interface.
The main interface will let you know that you're using WireGuard:
"WireGuard" is a registered trademark of Jason A. Donenfeld.
Linux users can take full advantage of WireGuard's speed and flexibility with our Windscribe Linux app, featuring multiple WireGuard ports, command line functionality, and advanced networking capabilities."