Key Takeaway (TL;DR): Network environments treat protocols differently: public Wi-Fi frequently throttles UDP (crippling Hysteria 2), whereas congested evening home broadband suffers under standard TCP windowing. Hiddify's Sing-box core allows mixing TCP-based VLESS-Reality and UDP-based Hysteria 2/TUIC within unified policy groups, ensuring seamless failover when local ISP conditions degrade.
1. Protocol Matrix
- VLESS Reality: Reliable TCP traffic masquerading as legitimate big-tech TLS handshakes.
- Hysteria 2 / TUIC: Aggressive UDP-based congestion control optimized for lossy links.