Well, such things can be subjective. Yes, Odin does not do concurrency and channels. This appears to be because Odin doesn't do automatic memory management, and has more limits on the language, in terms of focus. It can be argued that Odin adapted itself to being a strong Jai alternative and appealing to gaming, versus more general purpose.

My understanding is that Odin does not plan to ever attempt to put concurrency nor channels into the language. It looks like that some type of workaround, if it ever happens, will have to be implemented by a 3rd party library.

It should be added, Vlang (the other Go alternative mentioned) because it was designed for various memory management options (both automatic and manual), does do concurrency and channels (https://github.com/vlang/v/blob/master/doc/docs.md#concurren...). Vlang aims to be more general purpose versus more specific.