Welcome to the MongoDB Community Forums @Michael_Pine !
Atlas provisions and manages the required cloud provider resources for your Atlas clusters (for example, Azure instances). Your interaction as far as resource management/configuration for Atlas clusters goes is via the Atlas UI or API.
For dedicated Atlas clusters you can create a Private Endpoint which uses Azure’s Private Link feature to provide secure connectivity to mapped Azure resources. Connectivity to other Azure resources via Private Link is managed by your team via your Azure Portal or API.
Regards,
Stennie