Microsoft recently revamped its Whiteboard app, which enables you and your fellow Team members to collaborate on a shared virtual whiteboard. All of you can add text and images to it, which can be created using the app's sketching tools.
You can use the Whiteboard app during Teams video meetings, but you can also add the Whiteboard app to any of your channels or chats. This allows you and your team members to keep adding to the whiteboard over time.
To add a whiteboard to a channel, open the channel and click the + icon at the top of the channel. This will open the “Add a tab” panel. On this panel, click the Whiteboard icon. Another panel will open where you type in a name for the whiteboard. Click the Save button on the lower right, and your new whiteboard will be added to the channel.
To add a whiteboard to a chat, open the chat and look at the tabs across the top of the window. “Whiteboard” may already be listed here, either visible or underneath the “more” menu. Click Whiteboard in either place to add it. If Whiteboard isn’t listed anywhere along the top of your chat, then click the + icon and follow the steps above for adding a whiteboard to a channel.