The web is the only major platform that has a language monoculture to its detriment (i.e., not all problems are Javascript shaped). IMO the web ought to become multilingual (and become JS optional_ to further ensure its continued longevity and agility. Hopefully one day browser vendors will offer multiple runtime downloads (or something similar capability).
WASM already offers this, for better or worse... There should be improved interop APIs for DOM access, but WASM is already very useful and even for directed UI control, "fast enough" a lot of the time. Dioxus, Yew and Leptos are already showing a lot of this to be good enough. That said, I would like to see a richer component ecosystem.
All the embedded systems I've worked in have many languages you can use to compile whatever, burn, and run whatever you like. Consoles run game engines and programs written in all sorts of different languages. They don't care as long as they can execute the binary. Phones can run apps using many different languages (C, C++, Rust, Python, etc.).
