There are plenty of Python apps now running in WebAssembly too. A lot of Node's stack directly runs in browsers (browserify is "ancient" tech at this point and

There are plenty of Python apps now running in WebAssembly too. A lot of Node's stack directly runs in browsers (browserify is "ancient" tech at this point and influenced so much of modern "bundling" including Webpack and many things post-Webpack). (Deno's doing its own work with browser-compatible Node APIs, too.)