I believe this is subsumed by a feature called "executors":
https://accu.org/journals/overload/29/164/teodorescu/

On Tue, Mar 14, 2023 at 11:02 PM phoenix fire wingz via Std-Proposals <
std-proposals_at_[hidden]> wrote:

> Hello I'm new to this mailing list. I just wanted to ask if there are any
> plans to add a threadpool to the upcoming standard?
>
> it would be nice to be able to submit tasks to a queue and have them
> processed asynchronously. Many newer languages e.g. Rust, C# and even Java
> have this feature. Why have we overlooked this?
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