Hello,
This is not correct, version 6.7 is the final version of the "vCenter for Windows" product, starting from version 7.0 and later it is only available in the form of an appliance built around a virtual machine known as the "vCenter Software Appliance" (VCSA).
So, as far as you can deploy a vCenter object using virtualization platforms other than ESXi (the success rate is variable) the you can try import the previous settings from an actual "file based backup" (also in this case the success rate is variable). But then, in practical terms, if you run into problems expect a "support level equal to zero", it means that you then have to consider making do on your own.
Reasonably I assume you already know this so I don't think it's necessary to add anything else.
Regards,
Ferdinando