Any PC that has virtualization features can be used. Unless it’s very old, I’d say it’s supported. But it may not be enabled in the bios by default. It’s called VT-x for Intel and AMD-v for AMD, I think. But both are supported for at least 10 years on almost any PC.
How about just having a button on a fob/phone which initiates comms, like in the good old days. You can’t relay the signal if there isn’t one till you press the button. But that isn’t sexy and it’s too similar to traditional cars, so they won’t do it.