I wonder how in the author's world teams communicate? How do they communicate progress with other groups (potentially other teams they need to synchronise with

I wonder how in the author's world teams communicate? How do they communicate progress with other groups (potentially other teams they need to synchronise with for the release of features), how do they communicate with managers (ah those pesky managers, always wanting to know when a feature will be ready), how do they communicate with customers (ah those pesky customers. always wanting to know when a feature will be ready)? “Good teams don’t need sprints to get good work done.” No, and that's not the idea behind sprints and backlogs and tickets. It is primarily about communication.