Microsoft 365 features that help users manage their subscriptions, account settings, and billing information.
Based on Microsoft's prerequisites for Cowork, a separate Cowork license is not required. Access is covered by an existing Microsoft 365 Copilot license assigned to the user.
In addition, the following tenant requirements must be configured:
- Cowork enabled in the Microsoft 365 Copilot environment
- Usage-based (Cowork) billing enabled
- Anthropic enabled in the tenant
If those prerequisites are in place, users with a Microsoft 365 Copilot license should be able to access and use Cowork.
Ref: https://learn.microsoft.com/en-us/microsoft-365/copilot/cowork/get-started
I hope this helps.