SSRS and Power on one Instance

Hi Tawa- Running Power BI and SQL Server Reporting Services (SSRS) in parallel on the same environment with the same report server database is not achievable.

Migrate to Power BI Report Server: If you want a unified solution that handles both traditional SSRS reports and Power BI reports, consider migrating to Power BI Report Server. It allows you to run both RDL (SSRS) and PBIX (Power BI) files, but it would still require its own ReportServer database.

Side-by-Side Installation: If you need to run both services, you can install SSRS and Power BI Report Server on the same machine but using separate databases for each.

ref links:

Solved: PowerBi server and Sql server reporting services 2... - Microsoft Fabric Community

Challenges in replacing SSRS with Microsoft Power BI | BizAcuity

Hope this helps, Let me know if some more information required.