I had a pretty bad experience with running a desktop in UTM. The UTM app itself freezes a lot and has to be force quit, and I think there are issues with the GPU acceleration.
Parallels was a night and day difference in both stability and responsiveness of my desktop. And copy/paste Just Worked as well. Definitely worth the $100/year subscription in my opinion.
The only thing I'd like to have is some sort of background daemon, so my VM don't stop if I accidentally close the UTM window.