Wow that's very surprising apple is trying to give better support for virtual environments instead of worse..
Do you know if they're allowing their iOS dev tools to run in there so you don't have to buy a mac anymore?
I have been developing a toy iOS/macOS app running macOS with this. I am able to login with my dev program credentials and do everything I need. I haven't tried submitting anything to the store.
Apple is adding better support for virtual environments running on the Mac. Not virtual macs running on other machines. That is all coming from the community.