Fabric Capacity Determination

Hi Rafaela07, 

You can also use the Fabric Capacity Estimator to get an idea: Fabric Capacity Estimator | Microsoft Fabric

For the capacity metrics, you are correct that it is not real time. For items that existed before the last semantic model refresh, there is usually a 15-20 minute delay in data getting into capacity metrics. For new items, they only appear once the semantic model has been refreshed (usually once a day). 

On the roadmap is an eventstream source for capacitity utilization events: 

Once this releases, then real time data will be available. 

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