Every install in the fleet phones home with a heartbeat: theme version, core compatibility, and a bundle of health signals. Individually those numbers are noise. Together they are the earliest warning system we have.
The trick is knowing which curves matter. A single failed check after an update is a blip; the same check failing across a fleet segment is a rollout problem. This post walks through the three panels we watch first.
The takeaway: telemetry is not about dashboards, it is about defaults. If the signal is good, nobody should have to look at it at all.