vSphere Lifecycle Manager (vLCM) in VMware Cloud Foundation is primarily responsible for updating and managing the lifecycle of ESXi hosts in a standardized manner. It allows administrators to define update baselines and images for the ESXi hosts in workload domains.
vCenter Server and NSX Manager are generally managed by SDDC Manager within VCF, not directly by vLCM.
SDDC Manager itself also has its own update mechanism separate from vLCM.

In VMware Cloud Foundation+ (VCF+), the VMware Cloud Services portal provides billing and subscription management functionality. It allows users to view and manage their usage, subscriptions, and billing details for VMware Cloud services, including VCF+.

The maximum supported roundtrip latency between VMware Cloud Gateway and VMware SDDC Manager is 30 ms. This latency requirement ensures reliable communication and performance for management tasks between the Cloud Gateway and SDDC Manager in a VMware Cloud Foundation (VCF) environment. Latency beyond 30 ms may lead to degraded performance or connectivity issues.