For having OVN distributed floating IP, should I use the "distributed" flag on router creation of OpenStack and/or use all compute nodes as Gateway Chassis?

For having L3 Gateway HA for non floating IP instances, should I use the "ha"  flag on router creation of OpenStack?

I ask this since I find that pinging from outside network to floating IP always comes to one of Gateway Chassis nodes. Is this normal behavior?

Best regards.