We ship a few specific dashboards out of the box in ACM, that are not part of any upstream mixin,

Namely,
ACM - Clusters Overview
ACM - Clusters Overview (Optimized)
ACM - Hosted Control Planes Overview
ACM - Resource Optimization / Cluster
ACM - Resources - Hosted Control Plane
Alert Analysis
Alerts by Cluster
Clusters by Alert
 
Additionally, there are a few virtualization and right-sizing dashboards (but these are owned by other teams).
 
A/C: * Evaluate these existing custom dashboards and see if any can be skipped as the same information is represented via upstream mixins

• If not, port the via Go SDK in MCOA
• For dashboards, not in the purview of our team, create tickets and reach out to maintainers of that specific dashboard (virt/right-sizing)