Comment by benjaminl

They should move to using QUIC which is the protocol backing HTTP/3. QUIC incorporates TLS1.3 and has an extension for UDP style unreliable datagrams (https://datatracker.ietf.org/doc/rfc9221/). It would be the perfect way to bring SSL/TSL/HTTPS VPNs onto a modern performant protocol while keeping the simplicity in of the https based VPN. It would still have the advantage of looking like https traffic, while have the performance characteristics of UDP based VPN protocol.