The document discusses the advantages of using Flutter for video, voice, and chat SDK development, highlighting features such as a single codebase for multiple platforms, customizable user interfaces, and cost-effectiveness due to its open-source nature. It mentions that over 700,000 apps on the Play Store utilize Flutter and emphasizes its growing adoption by major companies like Google and Alibaba. Additionally, it notes the benefits of the Flutter engine's core nativity and the hot reload feature that facilitates rapid development.