When deploying Apigee X, choosing between VPC Peering and Private Service Connect (PSC) is your first big hurdle. This video breaks down how to handle traffic coming in and going out, ensuring you don’t get stuck on IP limits or complex routing.
Learn to build a setup that scales easily across on-prem and multi-cloud targets 
Master Apigee X Networking: Choosing Between PSC and VPC Peering - Knowledge Hub - Google Developer forums