Back when ESXi used to dominate the home server ecosystem, Xen was the other key player for Linux-centric setups. But with the rise of KVM, the situation is a lot different from what it used to be. These days, most folks tend to prefer KVM-powered home labs, with Hyper-V and ESXi being the other popular options. Meanwhile, Xen is no longer as popular as it used to be – to the point where you might come across folks who consider it a dead hypervisor.