We are monitoring it closely and super excited about what WebTransport will provide, which is both a more reliable and in many cases more performant transport. However, much like WebSockets, it's still quite low level and only provides a basic communication protocol. As such, like we have done with SSE, HTTP, Websockets and MQTT, our service focusses on what developers can enable on top of these lower level transports, such as presence, deltas, history of streams, limitless scale and fan-out of data, and the list goes on https://ably.com/platform.

When WebTransport reaches prime time, I'm confident we'll be supporting it.