Last time i tried F# i got bit by the weird concurrency story. There was async/task and somwhow they did not play well together. Also the dev tooling (for vim) was subpar, compared to ocaml (lsp). Compile times also was on the slower side.
If you use task { } CE's you will get really good UX (it is recommended to use them over async CE's). They were introduced in F# 6.0 to address outstanding interoperability issues. As of now, writing asynchronous code is more convenient than C# (which is more convenient than Go or other languages which are less expressive w.r.t. writing highly concurrent code).
`async` is F#'s original implementation of async programming. It is the precursor to C#'s await/async.
`task` targets the .NET TPL instead, which is also what C#'s await/async and all of .NET *Async methods use.
While the `async` implementation still offers some benefits over `task` (cold vs. hot starts [0]), my advice is - if you're doing backend code on .NET, you should use task. The tigher integration with the .NET ecosystem & runtime results in better exception stack traces, easier debugging and faster performance.
[0] https://github.com/TheAngryByrd/IcedTasks?tab=readme-ov-file...