▲ ▼ Retrieving baggage lost at airport
Retrieving baggage lost during transit at busy international airports are a huge hassle if not impossible. Since hundreds of baggage pass through the conveyor belts at these airports at any given moment it's easy for a baggage to be misplaced.
Locating such lost baggage could take weeks at busy airports where thousands of baggage are added to the lost&found section every day, If our baggage was lost at a connecting airport we would be in a different city or country by the time we realize that our baggage was lost.
Even the top-rated premium airlines do a bad job at repatriating lost baggage due to the sheer volume that they often prefer to reimburse instead, But some lost items could have emotional value.
Apple AirTag - https://www.apple.com/airtag/ could help locate at-least the airport where our lost baggage if we came through several connected airports, But retrieving that baggage by coordinating with the help desk is again going to be a huge pain.