Haven’t tried it yet, but I can see myself using it in the future. It could be great for automating Mac/iOS development and administrative workflows. I don’t think you can compile, sign, notarize, or inspect Mac/iOS apps without Xcode tools (which are, of course, Mac-only). It’s a pain in the ass to operate Mac VMs for such purposes, and it’s only getting more difficult as time goes on. IIRC Apple only allows 2 guest VMs per host now.

Not sure if there are any non-Mac tools to work with dmg files (Mac disk images).

If GUI support is sufficiently developed in the future, there are plenty of Mac apps I would like to run. iPhone app support on Linux would be an absolute game-changer.