Scale with Master Dashboard

Tl;dr: is it possible to change the data source (web call) specifics on a published report based on the user?

This is a question of how best to scale using PowerBI embedded. I would like to ideally maintain one "master" report that my various clients access. Each client should only see their own data but the dashboards should otherwise remain identical. The reports are fueled by a web connection to a graph database. I would prefer to change the data source based on the user rather than mixing data and relying on row-level security to filter. Is this possible? Is there a better approach that will maintain data segregation and scalabilty?