Android Outlook — Web App
Tap the in the upper right corner of the browser. Select Add to Home screen or Install app . Follow the prompts to name the shortcut and tap Add .
: Tap the "+" button at the top left to compose a new message. Method 2: Install as a Progressive Web App (PWA) Android Outlook Web App
Set up email in the Outlook for Android app - Microsoft Support Tap the in the upper right corner of the browser