Cross-browser compatibility has been a persistent challenge for developers, and Vue.js, despite being relatively new, has gained popularity for its ability to create cross-platform apps. The framework is inherently compatible with most modern browsers, although issues such as lack of support for Internet Explorer 8 and the need for customization introduce additional challenges. Tools like Capacitor and Electron enhance Vue.js's capabilities for developing cross-platform applications by allowing integration with native device features without platform-specific coding. Additionally, Vue.js can be paired with NativeScript to further simplify cross-platform development. Developers can mitigate browser compatibility issues by employing practices such as using linters, leveraging browser developer tools, and implementing polyfills and feature detection. Despite some obstacles, Vue.js stands out as a robust option for building cross-platform apps, offering a blend of features from frameworks like React and Angular.