My question is why you would want to do this other than to show it’s possible
That is part of it, but there are some Android Apps such as some of my favorite e-book readers that work better than anything Windows has to offer. I also like being able to view my security cam video that are android based on a full sized monitor. And I could give you other examples as well. Android has apps that are quite useful and do not always have Windows equivalents, especially for free or low cost.
My team at one point was developing Android situational awareness apps. We had Android running on phones, of course, but also in virtual machines on Windows, Mac, and Linux platforms. Cool thing was that all the networking worked as it was supposed to on just Android.
You don't understand code-jockeys. Sometimes the only motivation needed is the challenge. I got most of that out of my system decades ago, but I'm still guilty of it every now and then. LOL