Deploying and connecting microservices in a multi-cloud environment can be effectively managed using Kong Gateway, which serves as a unified entry point to handle services across different cloud providers like GCP and AWS. The process involves setting up a local deployment of Kong Gateway, configuring it to point to various microservices, and implementing authentication strategies such as JWT to manage access. The article outlines a mini-project with services including Users, Orders, and Authentication, demonstrating how to deploy them across different clouds, implement JWT authentication using Kong Gateway's plugins, and apply rate limiting for traffic control. This setup ensures secure and efficient connectivity of microservices, highlighting the advantages of Kong Gateway in overseeing a multi-cloud architecture, providing enhanced visibility, decoupled scaling, and consistent application of security and traffic management protocols.