I really liked lxc but then one day it turned out that it was replaced by lxd and you had to install Ubuntu to use it and I switched to docker (now on podman).
Do you really have to use Ubuntu for LXC? My (Debian-based) Proxmox has LXC capability, and it's easy to find instructions to other Linuxes, like so: https://fedoraproject.org/wiki/LXC. Is there something I'm missing?
I think they're referring to the Linux Containers project focussing more heavily on LXD and pushing it as a better "front end" to LXC - but LXD has not been available directly on Debian until Bookworm was released .. a month ago.