A Tanzu Basic license is required to enable Workload Management on VMware Cloud Foundation. Once enabled, the Supervisor Cluster must be assigned a Tanzu license before the 60-day evaluation period expires. This license can be added to the license inventory of vSphere if a valid Tanzu Edition license is available.
Reference:
A Tanzu Basic license is required to enable Workload Management on VMware Cloud Foundation. Once enabled, the Supervisor Cluster must be assigned a Tanzu license before the 60-day evaluation period expires. This license can be added to the license inventory of vSphere if a valid Tanzu Edition license is available.
https://docs.vmware.com/en/VMware-Cloud-Foundation/4.2/com.vmware.vcf.vxrail.admin.doc/GUID-E8D0A432-8573-4DF5-9330-A4FE15F74128.html

Explanation
This is because according to VMware documentation, this is the procedure for deleting a VMware Cloud Foundation Workload Domain and re-using its ESXi hosts:
* Decommission all ESXi hosts in a cluster
* Delete all clusters in a workload domain
* Delete workload domain
* Re-image ESXi hosts using SDDC Manager

Explanation
According to VMware Cloud Foundation Planning and Preparation Workbook, when filling out the Credentials Worksheet in the Deployment Parameter Workbook, you must provide differentpasswords for each user account that will be created during deployment. This ensures security and compliance for your environment.

https://docs.vmware.com/en/VMware-Cloud-Foundation/4.5/vcf-getting-started/GUID-C68FD810-D270-43F2-AEBF-D522BA1F402B.html#:~:text=For%20each%20VI%20workload%20domain,vSphere%20maximum%20of%2064%20hosts. You create VI workload domains to run customer workloads. For each VI workload domain, you can choose the storage option - vSAN, NFS, vVols, or VMFS on FC.
VMware Cloud Foundation supports several storage types as principal and supplemental storage for VI workload domains. Principal storage is the initial shared storage type that is selected during the creation of a workload domain or cluster in SDDC Manager. Supplemental storage is the additional shared storage type that can be added after a cluster has been created using the vSphere Client.
The supported principal storage types for VI workload domains are:
vSAN
NFS v3
vVols (FC, iSCSI, or NFS)
The supported supplemental storage types for VI workload domains are:
vSAN
NFS v3 or v4.1
vVols (FC, iSCSI, or NFS)
VMFS on FC
iSCSI
NVMeoF/TCP
Therefore, the only option that contains only supported storage types for VI workload domains is B. NFS v3, NFS v4.1, vSAN.
For more information, please refer to the following sources:
Supported Storage Types for VMware Cloud Foundation
Managing Storage in VMware Cloud Foundation
VMWare Cloud Foundation Now Supports NVMeoF/TCP

Explanation
when upgrading ESXi software on Dell EMC PowerEdge servers using SDDC Manager Lifecycle Management (LCM), you must use a Dell EMC customized image that contains drivers for specific hardware components such as storage adapters.
https://docs.vmware.com/en/VMware-vSphere/6.7/com.vmware.vsphere.virtualsan.doc/GUID-08911FD3-2462-