Be careful with all types of rear racks that are mounted on the rear triangle tubes, it's a risk that frame will fail. The best choice would be the Tailfin with Aerorack and all its additional accessories, but the prices are the highest on the market for such a complete solution. Another option is to adapt the Ortlieb QuickRack with a thru-axle adapter.

Here is a thread on Reddit on that topic: https://www.reddit.com/r/bikepacking/comments/12vd83l/modifying_topeaks_journey_trail_thru_axle_to_fit/?share_id=2rGWcNniPOsd78H8QVfCa&utm_content=2&utm_medium=ios_app&utm_name=ioscss&utm_source=share&utm_term=1

You can also find the dedicated ORTLIEB THRU AXLE adapter here, just released some time ago: https://www.rosebikes.pl/ortlieb-thru-axle-m6-connector-adapter-thru-axle-2726722?sf=1

I have an Ortlieb rack on my touring bike and am pretty happy with it, but I am also looking forward to buying the thru-axle adapter just in case I decide to use it with my G068 frame.

I asked David about the load bearing for the rack when using the mount points and not the thru-axle. He told me that the maximum load is 6kg, which is more than a seat-pack (generally rated at 4 kg). So I am planning to get the QuickRack and mount it directly on the frame and use a ortlieb dry-pack with no side bags. I hope the frame will hold.