Note: Before you go down this particular rabbit hole. Three words of advice.
Firstly, even with all the CPU accelerators in place and as many of the performance barriers removed, this emulation is not very horribly quick. It’s useable, but you could just go out and buy a cheap Chromebook, and get fantastic performance.
Secondly, the version of ChromeOS currently available on Android Studio is quite old its version 6.7.
Finally, although this performed better than the nested Windows version I had running on my ESXi host, I found it crashed more frequently on Ubuntu than it did on Windows10. I’d be tempted to try this on physical Windows.
For me, the deal-breaker is the ancient release of Google ChromeOS available through the ChromeOS Repo. Its something I might come back to using a Windows build in a few months time. The setup here works for ALL operating systems including Windows, just skip the Linux bits if you setup on Windows.