Chrome 133 introduces a new feature, `moveBefore()`, which allows developers to move DOM elements while preserving their state. This advancement is expected to enhance the functionality of frameworks such as React, enabling powerful features like hot-swapping Portals without disrupting internal states. The significance of this feature lies in the improvement of virtual DOM operations, eliminating the need for complex diffing algorithms and potentially streamlining rendering processes in various libraries. As the web standards evolve, developers are encouraged to explore these new capabilities.