QUIC is not Quick Enough over Fast Internet | Proceedings of the ACM Web Conference 2024
https://dl.acm.org/doi/10.1145/3589334.3645323
ここに来てそんな…… (未読)
> We find that over fast Internet, the UDP+QUIC+HTTP/3 stack suffers a data rate reduction of up to 45.2% compared to the TCP+TLS+HTTP/2 counterpart. Moreover, the performance gap between QUIC and HTTP/2 grows as the underlying bandwidth increases.
らしい (再度言っておくが、未読)