Can you run MacOS on Ubuntu Virtual Box?

My current work horse is 2019 Macbook Pro with Catalina OS I want to move to Linux full time but since I have a lot of software platform specyfic on my mac the moving will have to be gradual.

Is there a way where I could make a full backup of my mac and somehow run it on the Ubuntu Virtual Box VM? And if so how would that work if I later wipe it all clean and sell to someone else? - does apple have any system to check if there are 2 the same systems running?

submitted by /u/bytefan
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