Solus 3 patched as of nov. 26. In my logs I see :
nov 26 16:53:31 dell-laptop avahi-daemon[558]: Failed to open /etc/resolv.conf: No such file or directory
Other distros seem have the same problem : "The avahi-daemon cannot open the /etc/resolv.conf file because it starts before systemd-resolved."
ref. https://bugs.debian.org/cgi-bin/bugreport.cgi?bug=800643