I do really like the comprehensive bag tracking that AA provides in their app. Though, I find it more useful during tight connections as it provides confidence that bags have made it onto your connecting flight. Hopefully this is what QF are implementing.
EG from a recent trip, with < 1 hour connection. It shows down the minutes, though I've redacted that.
Was very impressed, not only with the app but also the baggage handlers in CLT. Better then my experience with tight connections in SIN.
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