Maybe things have changed, but a few years back, just before an afternoon HKG-SIN flight, I’d left my jacket hanging on a chair in the pier. Realized onboard, just before takeoff, iirc when the crew were taking someone else’s jacket to hang. Spoke with them, decided to not go searching, but did get a ‘it has been found message’ before takeoff.

It was delivered at home in SIN the next day.