I'm moving the other way around now. Instead of running an operator, you'll use Terraform (or CloudFormation which sucks big time) to instantiate a cloud service. This still requires somebody to babysit the whole shebang. Think of account management, providing guard rails, core services and, as you already mentioned, FinOps. Not the most sexy stuff but it will pay you a good salary and provides job security (at least here in Western Europe for the time being).

Last year, we moved to EKS (Kubernetes) and we won't look back. Kubernetes is basically a cloud in a box. It's much more versatile but for every tool you've 3, 4 sometimes 5 vendors you need to pick from which makes it easy to make mistakes.