We know that Intel CPUs have IME and AMD CPUs have PSP, but is anything known about VIA processors (https://www.viatech.com/en/silicon/processors/ https://www.v

We know that Intel CPUs have IME and AMD CPUs have PSP, but is anything known about VIA processors (https://www.viatech.com/en/silicon/processors/ https://www.viatech.com/en/silicon/processors/) and boards (https://www.viatech.com/en/boards/ https://www.viatech.com/en/boards/)? Are there any other producers of x86-64 CPUs?