QUIC is built on UDP, not sure if you were aware based on your 3rd paragraph? > One concern about the move from TCP to UDP is that TCP is widely adopted and ma

QUIC is built on UDP, not sure if you were aware based on your 3rd paragraph? > One concern about the move from TCP to UDP is that TCP is widely adopted and many of the "middle-boxes" in the internet infrastructure are tuned for TCP and rate-limit or even block UDP. Google carried out a number of exploratory experiments to characterize this and found that only a small number of connections were blocked in this manner.[3] This led to the use of a rapid fallback-to-TCP system; Chromium's network stack opens both a QUIC and traditional TCP connection at the same time, which allows it to fallback with zero latency.[17] https://en.wikipedia.org/wiki/QUIC#Characteristics https://en.wikipedia.org/wiki/QUIC#Characteristics