I have two existing AQN-107 adapters and now my Zenith board comes with one. I have found that they suffer from a lot of connectivity issues and wanted to see if anyone else is having issues. Mainly, I can get high substained throughput between local devices. However, external networks are a issue. Web pages don't fully load or timeout, download over Steam, Microsoft store or Origin fail. Speed test results start out strong but drop off.
To isolate this to the Aquantia NIC I have tried a Chelsio 10Gbe adapter, the 1Gbe Intel port and the Wifi6 adapter and they all work as expected. I've also been able to get similar issues using the PCIE AQN-107 card in both the Zenith board and a separate ROG Crosshair/9900k build. I have also connected the Aquantia cards straight to the router to eliminate the 10Gbe switch and at 1Gbe speeds they still have issues.
Starting to regret going the Asus route as Gigabyte went with Intel 10Gbe which is similar to the X550 cards used in enterprise servers.