From the title, I thought somebody modified macOS to run on the iPad. Nope, they just used the iPad Pro as a monitor for a Mac mini. Should of figured that out, because it says they used a Mac mini to get macOS on the iPad.
I already knew you could do that, I read an article about that, probably a month or longer ago. Took em that long to find out you can do that.
You could play games on the new Mac mini, with a eGPU. Would be far cheaper to use a PC, like I do.