we drank the AWS Kool-Aid and don't have any aspirations of going multi-cloud so we're doing all of our Cloud IAC w/CDK. However, I am interested in using something like Pulumi or Terraform to IAC our services: GitHub and Okta in particular.
I'm leaning towards Pulumi pretty much solely based on the fact that we can use TypeScript rather than having to learn a proprietary "configuration language".