Adding route failed with error:
Error: Multipath support not enabled in kernel.
# ECMP-Route
sudo ip route add default scope global nexthop via 10.0.1.1 dev wg0 nexthop via 10.0.2.1 dev wg1
zcat /proc/config.gz | grep CONFIG_IP_ROUTE_MULTIPATH
# CONFIG_IP_ROUTE_MULTIPATH is not set
Adding route failed with error: Error: Multipath support not enabled in kernel.