Will you use it for other stuff or just virtualization? Proxmox is designed for virtualization. It’s based on Debian and has a web GUI.

I jumped onto the FreeBSD train a year ago and needed some virtualization tool for my job. A started using bhyve and must say that I am quite happy with it and don’t plan to move to any other tool soon. Not sure how it compares to other tools performance wise but it does the job for me.

KVM with virtio runs circles around everything else