[asdkhadsj]

I would hope it's opt in for those scenarios. If the host is too "tiny" to carry around GCs, then a whole host of languages are not viable anyway. Requiring a GC wouldn't do them any favors.

[dmitriid]

Hard to say without reading all the specs/proposals: https://webassembly.org/docs/future-features/

But yeah, even specification itself is WIP