Are you also observing some amount of CPU or Memory utilized for Paginated Report even though you do not have any RDL file/Paginated report in your capacity? If yes, then this blog will help you resolve the issue.
Issue: CPU Utilization shown for Paginated reports even though there is no Paginated reports in the capacity in Premium Capacity Metrics App.
Solution:If we are not using Paginated reports at all, please disable the workload from Capacity Settings. A fraction of Memory/CPU maybe reserved for the engine. Hence if there are no Paginated reports, we should turn the entire workload off and likewise for any other workload.
Click the Gear icon on top right on app.powerbi.com -> Admin Portal -> Capacity Settings -> Workloads -> Turn off Paginated reports