facing the same issue with BTP as in e2e test https://github.com/envoyproxy/gateway/actions/runs/8073622448/job/22057769156?pr=2665#step:6:2130

#2665 introduce merge gateways e2e test, that requires multiple-gatewayclass per controller feature. but this test will affects all the other test cases that have policies attached. because the new gatewayclass in controller will also update the policy status, even the policy is not belong to new GC's.

so by fixing #2631, I think this issue can be resolved. assigning myself to these two issues.

Originally posted by @shawnh2 in #2520 (comment)