When I last looked about a year ago, WebTransport wasn't well supported yet.
QUIC and HTTP/3: the next step in web performance by Marcus Bointon
https://www.youtube.com/watch?v=7ctkY_vlGJY
If you skip to the timestamp 28:00, there is something interesting about WebSockets there
🤓
Discussion
https://caniuse.com/webtransport
Safari is 😑
Hmm, that's better than I remember.
Maybe I'm confusing my memory with WebGPU, which even chromium wasn't yet supporting without passing a command line flag.