debootstrap just populate a directory with files from the debian/ubuntu distros, LXC uses it, everyone who wants to create/boot a debian image that they create use it.
One major difference between systemd-nspawn and LXC is how simple and reliable systemd-nspawn - in particular the guest OS/image has to run systemd as well which is what provides the integration.
Eventually, if you wanted, you could mix and match the tools just fine.
One major difference between systemd-nspawn and LXC is how simple and reliable systemd-nspawn - in particular the guest OS/image has to run systemd as well which is what provides the integration.
Eventually, if you wanted, you could mix and match the tools just fine.