Note that an OCG simultaneously operating with multiple meshes is a non-goal

Signed-off-by: Flynn <[email protected]>

Author: kflynn

geps/gep-3792/index.md

@@ -120,6 +120,10 @@ In this GEP:
 - Support meshes interoperating with each other. It's possible that this GEP
   will lay a lot of groundwork in that direction, but it is not a goal.
 
+- Support an OCG operating with multiple meshes running in the same cluster at
+  the same time. This is definitely an area for future work, but it is out of
+  scope for the current effort.
+
 - Support non-mTLS meshes in Gateway API 1.4. We'll make every effort not to
   rule out non-mTLS meshes, but since starting with the mTLS meshes should
   tackle a large chunk of the industry with a single solution, that will be