RM573625 - Microsoft Teams: Event Chat now available for Events optimized for a large audience in GCC
Microsoft 365 Roadmap
Summary
All users in Events larger than 1,000 users or in any Event optimized for a large audience can now chat with one another in a public event chat in GCC.
All users in Events larger than 1,000 users or in any Event optimized for a large audience can now chat with one another in a public event chat in GCC.