I started experimenting with Go-WASM recently and learnt that writing non-blocking code is very crucial, Timer even inside a Goroutine blocks & crashes WASM. Leading me to use unreliable JS timers(albeit mitigating it with a worker) and performing only non-blocking compute on WASM.

Is this just a consequence of using Go for WASM(i.e. lack of WASM threads), What are people who built LibreOffice in WASM or Doom3 using? Can Go-level concurrency be achieved with WASM threads when programmed with other languages?