Microsoft Whiteboard is not yet available in Microsoft 365 GCC/Microsoft Team for Government.
It is on the roadmap to be available to our GCC customers, however, and will be FedRAMP reviewed.
In the meantime, there are a couple alternatives:
- Add Freehand by InVision as a tab in a Team or a meeting chat to collaborate.
For more on this, view:
https://www.youtube.com/watch?v=zd65qDvLZF0&feature=youtu.be - Add a OneNote notebook as a tab in a meeting chat and collaborate
For more on this, view:
https://www.youtube.com/watch?v=uDbituQPY9s&feature=emb_logo