A step-by-step walkthrough for collecting Unreal Insights traces from a local Android device
https://dev.epicgames.com/community/learning/tutorials/eB9R/unreal-engine-gathering-unreal-insights-traces-on-android
Should use port 1981 according to the docs here: Trace in Unreal Engine 5 | Unreal Engine 5.5 Documentation | Epic Developer Community