Websockets (the protocol) are mostly defunct in comparison to HTTP/2 and QUIC. Porting websocket based code should mean converting it to HTTP{2,3}. The main reason that's not possible today is due to large existing library support for websockets on both the server side and directly in browsers.
I disagree. Websockets sweet-spot is still the "server wants to send messages to the client" usecase. This does not work (as well) with http/2. Dunno about /3, but it's really a fundamentally different model than the reques/reply of http.
