As for now we can only add service labels/annotations under proxysql creation. We can't delete/update or add service labels/annotations after proxysql creation.
for serviceType: ClusterIP and LoadBalancer we see the same problems.
1. Create proxysql with service labels/annotations +
2. Delete proxysql service labels/annotations (delete in pxc, but not in service desc)
3. Add proxysql service labels/annotations (add in pxc, but not in service desc)