This is Proxmox 6 and here's the config of the VM. This is a brand new VM.
boot: d
cores: 4
ide2: local:iso/vCenterServerAppliance.iso,media=cdrom,size=4122432K
memory: 16384
name: vCenter
net0: virtio=2E:4E:A5:12:7F:A3,bridge=vmbr0,firewall=1
numa: 0
ostype: l26
scsi0: local-lvm:vm-100-disk-0,size=350G
scsihw: virtio-scsi-pci
smbios1: uuid=716759b2-c9c8-4c12-85ec-002581135b87
sockets: 1
vmgenid: 9be4f566-c0b3-4e6c-a519-c74fe7f8492e