The updated Frigade documentation provides enhanced guidance for building forms in React applications, focusing on simplifying the process of creating high-quality forms, which are both common and complex elements in app development. It introduces ready-to-go examples like feedback surveys and churn flows to help users get started quickly, along with comprehensive instructions for implementing client-side and server-side validation and saving data to a datastore. Additionally, the documentation facilitates the integration of custom components alongside Frigade's standard form elements, such as text fields and dropdowns, making the customization process straightforward for developers.