Interestingly enough for the C and C++ folks, compiler specific dialects for embedded without standard library, are still argued for as if being C and C++.
Thats the host, but the guess is missing, as stated in the issue last year "I guess we could add sockets to wasip2". To be honest, even BigGo failed me on websocket conns on both wasmtime and wazero (connects and gets into an inf loop on reply). WebWorkers and GOOS=js work like a charm tho on BigGo in FF/chrome.