On 12/4/25 11:27, Max Nikulin wrote:
I had both running without conflicts on my old laptop with
Ubuntu-20.04 LTS focal. I hope, Debian does not differ in this case.
Just set what devices each daemon should ignore.
Ethernet and WiFi were under control of NetworkManager (to have tray
indicator and to be able to switch profiles using mouse).
Systemd-networkd was in response of additional bridges (besides
lxcbr0) for LXC containers.
You can have the third option of networking.service running as well. All
rather confusing to have three at the same time. Best to stick to one
and systemd-networkd seems the most capable and it is much more reliable
then NetworkManager
