Data residency restrictions & global backup?

Hi,

If Azure geographies ensure that they preserve data residency within geographical boundaries. Then how does Replication across the globe happen? On this page https://docs.microsoft.com/en-gb/learn/modules/intro-to-data-in-azure/2-benefits-of-using-azure-to-store-data Point # 2 of ‘Benefits of using Azure to store data’

Thanks