> An integrated solution that bundles issue tracking, CICD pipelines, and package/container repository always beats spreading each feature throughout multiple separate service providers.

I agree but with GitHub actions, it's also possible for CircleCI to build a tight integration. When it comes down to it, each CI system has its idiosyncracies so choosing a CI system isn't as simple as how tightly integrated it is (e.g. how flexible it is with Docker, or the way it builds containers, or running multi-container setups)