ready to copy to 4.20

Author: jmanthei

release_notes/ocp-4-19-release-notes.adoc

@@ -2821,7 +2821,7 @@ To save the `vmcore` file, use the `crashkernel` setting to reserve 1024 MB of m
 
 * Currently Gateway API is not supported for on-premise platforms: BareMetal, VSphere, oVirt, KubeVirt, EquinixMetal, Nutanix. (link:https://issues.redhat.com/browse/NE-2010[NE-2010])
 
-*
+* The reverse proxy for Gateway API is known to be less performant than HAProxy. (link:https://issues.redhat.com/browse/NE-1990[NE-1990])
 
 [id="ocp-4-19-asynchronous-errata-updates_{context}"]
 == Asynchronous errata updates