Google Cloud Run doesn't provide nearly the same features as Heroku. For example, there is no easy way to manage secrets with Cloud Run. There is no way to run a worker process. Integration with other Google Cloud things like Cloud SQL is clunky. Cloud Run is okay to get started but almost all apps will need more.
We've been successfully using Cloud Tasks and firing payloads right back at our HTTP cloud run service to solve for the lack of background workers. We had to build a mini-framework around it, but it works surprisingly well.
