WT may not require H3 frames

[eagr]

From a mail and a draft update from Lucas Pardue, one of the editors of WT, a minimal WT implementation could be:

|       WebTranport        |
|  Punch  | HTTP Semantics |
| Through |   HTTP/3       |
|          QUIC            |

This may not apply to h3-webtransport, just in case you wanna know. :))