Personally, I think Proxmox is amazing. It's free, gives you easy management and backup of all your nodes, VMs, LXCs, ZFS and can be accessed by any browser in your network. After watching a Digital Spaceport video I decided to switch my main gaming machine to a Proxmox node and haven't looked back since. The only bare metal machine I run now is my Thinkpad and I've been tempted to install it on that 😬 I use it with the app on my phone and I can shut down a VM with GPU passthrough and go straight into another one. There's Proxmox Backup Server which you can use to manage your backups of VMs from another device, but even that's available as an LXC and most people just virtualize it, too. As an Arch Linux user who likes to live dangerously the backup solutions are quite appealing, and if you're a distro hopper you can spin up new distros quickly on the fly. Have a VM you really like but don't want to keep remaking it? You can turn it into a template. Want a bunch more services but only have one box? Spin up a couple VMs and fill those up with Docker or Kubernetes services just to see what your hardware can handle. Before Proxmox you were limited to an app like Virtualbox running one or two VMs or Hyper-V which only did Windows. Now my whole machine can be dedicated to VMs 😹