Microsoft Copilot (Microsoft 365): Updated chat-first design in the Microsoft 365 Copilot mobile app

We are introducing a refreshed chat-first design in the Microsoft 365 Copilot mobile app, bringing a cleaner, more intuitive interface to users. This update includes a modernized design language, streamlined navigation, and other improvements that make it easier and faster for users to start, continue, and manage chats on the mobile app.