Traditional DevOps pipelines fall short in regulated multicloud environments because they lack reliable drift detection and audit trails. GitOps addresses this by using git as the single source of truth, with Argo CD continuously reconciling cluster state and automatically correcting drift. A key practical concept is the 'evidence locker' — an immutable store (e.g., a locked GitHub repo or S3 bucket) where vulnerability scans, build logs, health checks, and deployment results are automatically collected throughout the CI/CD pipeline, making audit readiness continuous rather than reactive. Argo CD's built-in RBAC, SSO, Vault integration, sync policies, and audit logging map directly to regulated environment requirements like FedRAMP, HIPAA, and Protected B. Branch segregation by resource type (admin, cluster config, app manifests) enforces separation of duties across multicloud and multi-tenant setups.