Download a desktop chat client or a little menu bar utility — each app includes its own copy of Electron at 150MB.
Make a "Hello world" web client app using React with the recommended "create-react-app" toolchain — your project will first download nearly 200MB of code via npm (and each project you start will have its own copy of this stuff).
Make a web server with a framework like Rails, Vert.x or whatever — be prepared to spend hours downloading dependencies and setting up your local environment just so.
I don't have any good ideas for how to break this cycle. By 2028, I expect every to-do app will include its own 4GB copy of Ubuntu because it's convenient.