Electron has significantly changed how desktop applications are developed by utilizing web technologies to lower the entry barrier, despite its mixed reviews. The text explores how Electron simplifies single-window apps but introduces complexity in multi-window scenarios, especially regarding data management between windows or processes. It discusses the use of Electron's IPC (Inter-Process Communication) module to facilitate synchronous and asynchronous messaging between the main and renderer processes, crucial for managing data flow and application state efficiently. The text offers a practical guide, detailing the implementation of both synchronous and asynchronous IPC messaging using the ipcMain and ipcRenderer modules. It highlights the importance of these methods in maintaining effective communication within Electron applications, enhancing the flexibility and functionality of app development.