Not seeing it
First, I'm not seeing Apple allowing this. It's just not how they do things.
"Some of you may at this point suggest DIY x86 Macs, aka Hackintoshes, as an alternative. It's certainly possible to create a Hackintosh but they are a faff to get running reliably, in my opinion. They're also problematic because Apple's T&Cs for macOS only permit the software to run on actual Macs, not whatever x86 box you've built for the job."
Actually I've found that a hackintosh-type setup on Virtualbox (and apparently vmware as well) are much less finicky; it's set to provide some set of hardware OSX can deal with, so you can then have whatever real hardware you want on your system; at that point your only hardware requirement is a new enough CPU (pre-2010 or so Macs can't run newer macos due to some CPU requirement, the same requirement still applies in a VM.) Totally unsupported due to those T&Cs.