LXD was forked as Incus, and it’s an absolute delight.
Seamless LXC and virtual machine management with clustering, a clean API, YAML templates and a built-in load balancer, it's like Kubernetes for stateful workloads.
Incus is fantastic. I think Proxmox is where everyone is migrating to after the VMWare/Broadcom fiasco, but people should seriously consider Incus as well.
snap, lxd (not lxc!), mir, upstart, ufw.
It's neverending, and it's always failing.