Need to test Load Balancer on MariaDB

We have MariaDB Galera Cluster hosted on 3 nodes . System Administrator has configured F5 Network Load Balancer so that Traffic can loaded on least nodes as there is frequent Data Loading done from Streams.

When Data Loading team is loading Data , using show processlist command , I am able to see Stream connection established and Insert & Update operations being done.

What should I do to see that these connections are managed by Load balancer ?

or how Load Balancer is communicating with all 3 Maria DB Nodes

Do we have any Dictionary View or SQL Query which could tell us about this , Kindly support and guide me