The spec says:

a [[Time]] value of type DOMHighResTimeStamp, which corresponds to the time the data was obtained from the system, relative to the time origin of the global object associated with the PressureObserver instance that generated the notification.

In Chrome Canary I'm getting timestamps, though. (e.g., 1712050826399.263, so maybe it is a Chrome bug?). I was expecting a smaller number similar to when I call performance.now().

Follow up question: If I should be seeing relative time stamps, do they respect performance.timeOrigin so that I could sync times between window and worker contexts?