The most direct way to get a "Google Calendar app" is to use or Microsoft Edge to install the website as an application. Google Helphttps://support.google.com Get started with Google Calendar - Computer
While Google does not provide an official standalone desktop application for Windows, you can effectively "download" it by installing it as a Progressive Web App (PWA) . This creates a dedicated window and taskbar icon, providing an experience identical to a native app. Alternatively, you can sync your Google data with the built-in Windows 10 Calendar app for native system integration. Method 1: Install as a Progressive Web App (PWA) download google calendar for windows 10