Who is running the OVS firewall driver (firewall_driver = openvswitch)  in production and are there any issues with running it which I may not be aware of?  We are not yet ready for OVN deployments so have to stick with OVS. 

LinuxBridge is at the end of its life trying to get rid of any dependency. 

[securitygroup]
firewall_driver = openvswitch