Eh, it's still the least hassle at scale for your own data centers and VCF 9 isn't exactly low tech - it does things no one else really can do to the same level of quality (DRS, HCX, NSX, VSAN all come to mind) , the question is, is it worth the money? Unless you're over 10,000 VMs, probably not.

OpenShift is okay but has quirks unless you have a major Kubernetes staff; Proxmox is good for most but I wouldn't use at massive scale. Azure Stack/ Hyper-V can work but has its own quirks.