Maybe this helps - i looked into this other issue here
and ran the grep suggestion
$ ps aux | grep dnsmasq
lxd 452486 0.0 0.0 7208 3632 ? Ss 18:34 0:00 dnsmasq --keep-in-foreground --strict-order --bind-interfaces --except-interface=lo --pid-file= --no-ping --interface=lxdbr0 --dhcp-rapid-commit --quiet-dhcp --quiet-dhcp6 --quiet-ra --listen-address=10.187.231.1 --dhcp-no-override --dhcp-authoritative --dhcp-leasefile=/var/snap/lxd/common/lxd/networks/lxdbr0/dnsmasq.leases --dhcp-hostsfile=/var/snap/lxd/common/lxd/networks/lxdbr0/dnsmasq.hosts --dhcp-range 10.187.231.2,10.187.231.254,1h -s lxd --interface-name _gateway.lxd,lxdbr0 -S /lxd/ --conf-file=/var/snap/lxd/common/lxd/networks/lxdbr0/dnsmasq.raw -u lxd -g lxd
The container has an ip and I can ping the host internally:
ping 10.187.231.1 takes like 0.01ms 
also for ping 192.168.1.98 (external host ip)
pinging the router 192.168.1.1 of course does not work…