There are many virtualization technologies. While CPU supports nearly all of them, chipset have only limited support (like no support for direct device mapping to VMs - VT-d), and, finally, exact system builder (laptop vendor) make available (or not) VT technologies at BIOS programming stage.
JFFulcrum, thank you for the information provided.
Indeed, the different features or technologies on OEM computers (like Laptops) will be provided or enabled by them.
If any additional questions are present, do not hesitate to advise me.