To be able to determine just such a situation, the tracker must send data about it. However, this is unlikely.
You can try to configure the tracker to send data permanently and enable notifications about no messages (unit menu - Settings - Notifications). In this case, if there are no messages from the tracker during a certain time, you can receive a notification. In this case, the main thing is that the selected interval of no messages should be greater than the interval with which the tracker sends messages during and without movement.
If you have any other suggestions, please write to us about them.