[powowowow]

The 'Battery Health' screen shows the device specific aspect of the implementation.

There's a section titled 'Peak Performance Capability' which will say "This iPhone has experienced an unexpected shutdown because the battery was unable to deliver the necessary peak power. Performance management has been applied to help prevent this from happening again." if that specific device had an unexpected shutdown related to battery health.

That's how it worked both before and after the controversy; the only thing that changed was that Apple added the battery health UI along with an option to disable the performance management features.