Can’t disagree. Virt Manager is awesome, particularly since it’s managing the hypervisor that’s baked into the kernel. Nothing like running your VM’s as close to the hardware as possible.
However, I have to point out that there is a bit of a learning curve, particularly with regards to storage and networking, for someone coming from something like VirtualBox or VMware Workstation to a Libvirtd (KVM/Qemu) and Virt Manager setup.
VirtualBox isn’t a bad product. Gets the job done and is much easier for newbies. And they recently started supporting nested virtualization.
Love the show. Never get to catch it live as I live and work in Japan. But happy to listen to the recorded versions and be involved in the Discourse forums.