Baggage trackers and lost baggage

Has anyone got any experience of these and are they worth getting ?We have had problems with lost luggage at airports and we have been told the Apple airtag would be best but it doesn’t seem to cover a very wide area. Any suggestions and are they worth the money, they seem to be quite expensive. We have got to the stage where we feel nervous about losing our baggage with Qantas so we now choose not to fly with them but sometimes the competition isn’t much better.