Displaying your screen content to others during a Teams meeting or call
Dear @Stuart Shipway,
To ensure I understand your request correctly and to support you as effectively as possible, I need more specific information from you:
Could you share a screenshot of the issue?
Are you using a personal or business/ school account?
Could you provide a screenshot of File > Account showing the subscription name?
Could you describe more details about the limitations?
Have you tried using the PowerPoint desktop app?
Due to my environment test on PowerPoint desktop app, the Section Zoom feature works normally as the below images.
Your provided information will help me assist you more promptly and efficiently.