Suggested by Tomoko Kamiguchi – Rejected
Status Details
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Renaming the environment through the admin center is recommended to make the purpose of that environment self-explanatory. Clearly communicate that Default is used for user and team productivity scenarios, but not business-important or mission-critical apps. This environment can't be disabled or deleted because it hosts integration with products like SharePoint and Project. We recommend a tiered approach to user and team productivity environments.
You can also control the set of connectors that can be used in the environment. You can find more on the connector blocking feature and the list of non-blockable connectors here -> https://docs.microsoft.com/en-us/power-platform/admin/wp-data-loss-prevention.
Hope this helps. Thanks.