UTM should support most of the same features (aside from ease of us for installing all macOS versions). It also now supports paravirtualisation using the hypervisor framework.
Comparing the code between the two, VirtualBuddy seems like the better option to me (albeit not by a lot though). They are both lightweight wrappers around MacOS’s built in hypervisor, so I’m really not sure what you’re going on.
Look at the code for the one he’s suggesting. It’s the same essentially. One is just more upfront about giving its visitors a clear understanding. Taken out of context I can maybe see what you mean, but like come on, it’s not an effort to keep up is it?
https://github.com/utmapp/UTM