Hi @and___rea ,
Welcome to Q&A forum!
As far as I know, the presentation must be able to connect to the data source of the chart to update the chart in real time.
Per my research, it seems that the PowerPoint client does not support connecting to the Azure DevOps service.
For more inforamtion, please refer to: Connect Azure Boards to an Office client.
Besides, since we are focused on general issues about PowerPoint client, I would also suggest that you go to the following Azure DevOps forum to seek more professional support and help.
Azure DevOps Services support
Thanks for your understanding.
Hope the information is helpful to you.
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