Microsoft Copilot (Microsoft 365): Floating Copilot icon in File Previewer for OneDrive

A new Copilot icon button provides a quick, visible entry point to Copilot directly within the file previewer in OneDrive. Positioned at the bottom-right corner (instead of the command bar), this button surfaces contextual prompts tailored to the file type and offers seamless access to Copilot chat, making it easier to get insights and take action without leaving the preview experience.