Sorry, misunderstood. Proxmox Free broke my containers on updating a while ago.
Now I use Docker-style application containerizing, but I think LXC (the base technology powering Incus/LXD) is useful in a number of situations and perfectly viable for use. I think Incus-containerized applications are easier to upgrade individually (like software updates of your apps, no need to recreate the container image) and gives a closer to native experience of managing. You do lose out on automated deployment of applications from widely available image sources like docker.io, but the convenience-loss is minimal.