Understanding Limits for Creating Workspaces, Lakehouses, Warehouses, Data pipelines and other items

It's not a tenant limit, it's a user and item limit

Workspaces in Power BI - Power BI | Microsoft Learn

Hi Shreya_Barhate 

In practice, we usually avoid creating too many items in a single workspace to reach the 1000-item limit, as it can negatively impact the efficiency of managing data and permissions.

Additionally, storage and compute capacity limitations can affect the number of items you can actually create. Since items within the same workspace or capacity share the corresponding resources, you may not be able to create more items once the storage or compute reaches its limit. Higher capacity workspaces can handle more items and larger workloads. You may pay more attention to capacity SKU and workspace license mode. Microsoft Fabric concepts - Microsoft Fabric | Microsoft Learn

You will find some suggestions and guidance about the deployment patterns at the tenant level from the document: Deployment patterns for Microsoft Fabric - Azure Architecture Center | Microsoft Learn

Hope this would be helpful. 

Best Regards,
Jing