Istio_requests_total change source_workload from application to istio-gateway

Hello! I have Istio 1.18.5 on 2 cloud.
We are changed ALB + nginx ingress controller to native nginx in Virtual machine+Istio gateway
I draw scheme before and after:
istio_requests_total have source_workload as offers

Prior to that, the application was specified in the istio_requests_total metric in label source_workload

I change scheme at 09:16
After the istio_requests_total metric, istio-gateway was specified in label source_workload

Because of this, we don’t see the full picture of requests between cloud in the Istio Mesh Dashboard.
How fixed ?