Everyone loves to tout TTFB numbers for quic, but there's very little widespread reporting on throughput, particularly analyzed for a large number / wide breadth of real world customers.
This matters because for a lot of operating systems, UDP buffers are still tuned to nearly 1990s levels, and are insufficient to overcome BDP challenges. For CDNs / edge deployment systems such as Cloudflare/Fastly, this may not be "statistically relevant" for their customers, in that they're close to "statistically most" of their customers, however for users in locations where these organizations do not have anywhere near such a good presence (APAC, the islands, etc), their experiences are getting _far worse_.
This matters because for a lot of operating systems, UDP buffers are still tuned to nearly 1990s levels, and are insufficient to overcome BDP challenges. For CDNs / edge deployment systems such as Cloudflare/Fastly, this may not be "statistically relevant" for their customers, in that they're close to "statistically most" of their customers, however for users in locations where these organizations do not have anywhere near such a good presence (APAC, the islands, etc), their experiences are getting _far worse_.