If you're looking to Download Google Chat on your Chromebook laptop Then read the following guideline.

Google Chat is an intelligent and secure communication and collaboration tool, built for teams. From ad-hoc messaging to topic-based workstream collaboration, Chat makes it easy to get work done where the conversation is happening. • Group collaboration that allows Google Workspace content creation and sharing (Docs, Sheets, Slides), without having to worry about granting permissions • Side by side editors, one click meetings, scheduling, document creation, and shared files, tasks, and events make it easy to get work done • Google search functionality, with options to filter for conversations and content that you’ve shared • Ready for Enterprise, with the full benefits of Google Workspace security and access controls including Data Loss Prevention, Compliance, Admin Settings, Vault Retention, Holds, Search, and Export