I lost my iPhone 7i on the concrete floor. Is there a way to read out from the motion tracking a time stamp when this happened?
Apple does not expose this data to users, so the answer is a general no.
Whether the data was captured doesn’t matter as much as observability does - similar to the “if a tree falls in a forest” thought experiment.
The sensor data is not stored unless you happened to be running an app that specifically stored that data while you dropped it.