Mizu.js is being discussed as a simple and lightweight HTML templating library designed for various rendering scenarios. Users express mixed experiences with similar tools, emphasizing the eventual complexities that come as applications grow. The advantages of using established frameworks like React are noted, particularly for consistency and speed of development. Comments highlight the appeal of Mizu.js in simplifying custom element creation compared to other libraries, while also mentioning initiatives like Heximal that aim to enhance HTML templating capabilities. The need for benchmarks against popular frameworks like Vue and React is also raised, noting the importance of licensing clarity for open-source projects. Overall, user feedback indicates a desire for streamlined, future-ready solutions in web templating.