I don't understand what you mean. The standards have to be defined and as demonstrated by wasm there's nothing preventing a runtime that all languages can targe

I don't understand what you mean. The standards have to be defined and as demonstrated by wasm there's nothing preventing a runtime that all languages can target that isn't just compiling to JS. How that was ever considered a solution is just mindboggling. What was delivered by wasm is something that we've wanted for 10 years and were repeatedly told was not possible. Even today there are people in this very thread arguing that was is already available is not possible...