Qatar still has the policy of interlining on their website today April 24, 2024.
https://www.qatarairways.com/en-nz/a...msm_moved.html
”
Qatar Airways is pleased to offer passengers the courtesy of through check-in of themselves and their bags to their final destination when travelling on multi-sector journeys involving connections onto other oneworld member airlines, even when the trip is booked using separate tickets."”
Originally Posted by
brunos
One World policy of checking through on separate tickets is long gone.
And QR policy has also been removed from its website. It is up to the agent in your origin airport.
QR codeshares on UL flights, so that might help.