You can add VMware Cloud on AWS - vCenter account and NSX Manager account in VMware Aria Operations for Networks to monitor your VMware Cloud on AWS network.

Note: VMware Aria Operations for Networks supports many types of NSX Manager accounts such as VMC on AWS NSX Manager, Azure VMware Solution NSX Manager, and Oracle Cloud VMware Solution NSX Manager.
To add VMware Cloud on AWS - vCenter account and NSX Manager account in VMware Aria Operations for Networks as data source, you must Manually Configure Data Sources for VMware Cloud.
Attention: The Activating VMware Aria Operations for Networks from the VMC Console feature is no longer supported.

If you have already activated VMware Aria Operations for Networks from the VMC console, there is no impact. You can continue to use VMware Aria Operations for Networks.