managedNodeGroups per cluster have a soft limit of 30 managed node groups per EKS cluster, and as little as 0. But we multiply that by a factor of 5 to 150 in case of situations of a hard limit request being accepted, and as a result the limit would be raised. https://docs.aws.amazon.com/eks/latest/userguide/service-quotas.html
autoscalingNodeGroups per cluster have a soft limit of 500 autoscaling node groups per EKS cluster, and as little as 0. But we multiply that by a factor of 5 to 2500 in case of situations of a hard limit request being accepted, and as a result the limit would be raised. https://docs.aws.amazon.com/autoscaling/ec2/userguide/ec2-auto-scaling-quotas.html