[niftich]

QUIC stands on its own; it just so happens that QUIC and SPDY (the predecessor of HTTP/2) show some convergent evolution.

You could use QUIC to transport other L7 protocols, but tracking down generic-enough implementations may be difficult, or at least was the case in the past [1][2]. Maybe things are better now [3].

[1] https://daniel.haxx.se/blog/2016/07/20/curl-wants-to-quic/

[2] http://stackoverflow.com/questions/17896432/

[3] https://github.com/google/proto-quic