babel-plugin-polyfill-es-shims enriches your JavaScript environment with missing ES feature polyfills based on target browsers and Babel's configuration. It intelligently adds shims, only including what's necessary for the specified environment, reducing bundle size. This plugin complements babel-preset-env by providing a complete polyfilling solution, ensuring compatibility for older browsers while optimizing your build for modern targets through dynamic library inclusion instead of adding all polyfills by default.