what are the limitations when we create a power app environment outside of my tenant region?

[Syndicate_Admin]

Choose the region when setting up an environment - Power Platform | Microsoft Learn 

When i Refer this document its Saying that we can create power platform environment outside our tenant region but at end of the document mentioned that there are limits to creating an environment for a region that differs from your tenant region. can someone help me with some documents which listing the limits.