Mozilla (Eich) wrote JS, and specifically Microsoft wrote the XMLHttpRequest, which allowed Google to exist. And supposedly WASM is to be that thing, so any language can compile down to it. Hasn't totally worked out I guess. A browser would have to take the leap to be WASM-only, and compile even JS to it.

I'm doing backend work mostly right now. If I start some other project, I'll probably try using htmx and tailwindcss as my two js script tags, and the rest will be controlled from the backend.