How to Embed Power BI report with React JS web application and what is required Power BI Licenses

Links oficiais (Microsoft Learn) 
Embedding Power BI in a React app: 
https://learn.microsoft.com/en-us/javascript/api/overview/powerbi/powerbi-client-react [learn.microsoft.com] 

Power BI Embedded/microsoft Fabric capacity: 
https://learn.microsoft.com/en-us/power-bi/developer/embedded/embedded-capacity [learn.microsoft.com] 

Permissões e GenerateToken: 
https://docs.powerembedded.com/perguntas-frequentes/licenciamento [docs.power...bedded.com] 

Integrar Azure Databricks ao Power BI: 
https://learn.microsoft.com/en-us/azure/databricks/partners/bi/power-bi [learn.microsoft.com]

Use PPU if the consuming audience is licensed;
Use PPC (Premium Capacity) for scenarios with many users without licenses;
Follow the backend → frontend flow with tokens as recommended in the links above.

I think it is work. becouse theses steps cover the licenses, costs, and official Microsoft documentation you need.