There were some recent updates to the storytelling experience in PowerPoint with Power BI. Patrick walks through how you can use these to make the most of PowerPoint and Power BI! About storytelling with Power BI in PowerPoint https://learn.microsoft.com/power-bi/collaborate-share/service-power-bi-powerpoint-add-in-about
Let's try to embed PowerPoint into a published Power BI App. Sometimes you just have to try something!