When a Power BI Report is added to the fact box on a Card page, for example on the Item Card, it would be nice if the report is automatically filtered with the primary key, just like the report is currently filtered on the Item list page.’
Ideas Administrator

Thank you for this suggestion! 
Filtering in PowerBI pased parts is already available: 

Currently there is nothing else on our roadmap, but we will be looking at improving the experience.

Best regards,
Business Central Team