No love for Hackintosh? I run all of my machines with High Sierra and they are rock solid.
The OSX86 Project[1] is pretty much all you’ll need for instructions for getting a hackintosh setup running. And if you’re interested in building one from scratch, the OSX86 Project lists compatible hardware so you can know what you’re buying will work.
If you don’t mind having to do a bit of reading and tinkering to get it working, it’s a solid way to be able to use OS X on non-Apple hardware. But, if you’d rather have something you can just install and forget, you’re better off just installing your favorite Linux distro, or buying a Mac.
I wonder if it might be possible somehow under Boot Camp. Or if on a machine as beefy as a Mac Pro if a VM would be good enough. I don't know enough about either to say definitively.
The dealbreaker for me is no ctrl key in the corner
System Preferences > Keyboard > Modifier Keys
The reason they don't support it is likely because there's not the demand among their customer base, as most people who want a GNU/Linux OS on a laptop go for Thinkpad or Dell due to better compatibility and other reasons.