your diagram is like a live dashboard that can be shown in a web browser

[Visisthebest]

Pretty useful to know Visio data graphics can be refreshed with new data even when published in a web browser!

https://support.microsoft.com/en-us/office/refresh-imported-data-ab3668a1-873d-4109-8fa2-532670bc01e2?ui=en-us&rs=en-us&ad=us#OfficeVersion=Web

This David Parker article pointed out this possibility:
https://bvisual.net/2022/04/18/update-any-visio-shapesheet-cell-with-external-data/