QUIC unfortunately defaults to 1370 bytes to avoid having to deal with PMTUD :(. Endpoints are free to negotiate higher and the protocol does provide a way to g

QUIC unfortunately defaults to 1370 bytes to avoid having to deal with PMTUD :(. Endpoints are free to negotiate higher and the protocol does provide a way to generate arbitrary sized ping frames, but it's likely most implementations will just stick with the default.