Yet it's Go that added big language features recently (generics, iterators, changing semantics of for loop) and not Rust. Rust hasn't gotten any new major features since adding async ~7 years ago. Rust is much more stable language-wise than Go, partly because it had much more features in 1.0, and Go has to gradually add them (what's next? enums?). It also has much more advanced mechanisms allowing to both evolve the language and not break existing code (editions). Things that neither Go nor Scala figured out yet.
Go has proven that people want cheap threads. If it didn't have it, it wouldn't get anywhere.
Now even Java has cheap threads (Loom).
And Go even has generics. Just 20-ish years later than Java. And it's likely that more features that now Java has will trickle into Go. If Go wants to survive.
All this to say that there is no space in the market for another language which is a stupid simple Algol. Go already occupies that space. And even Go will have to add features developers want/need, if it doesn't want to get cornered out of the market.
Go has proven that we still need the backing of large corporations for success in the tech world despite the fact that open-source powers most major tech companies today