Earlier quoted context omitted.
Docker started using an LXC driver to run workloads, but it was deprecated 10 years ago. No LXC remaining there :P
Cool but lxd is still a competitor to docker. I’ve read the move code for some work reasons. No lxc, as you said :)
Late reply but sorry, I was trying to reply to parent coment, that was mixing docker and LXD. Anyway, I don't see them as competitors. Although they do (in the core) a similar thing, I use them both for different tasks: LXD more similar to classic virtualization, and Docker for more tightly packaged things that are separated from its configuration and/or storage.