I’ve digged a bit deeper, RunCommandline is used when we do Quick Launch on Android from UE via:
- added to overall launch cmd line here https://github.com/EpicGames/UnrealEngine/blob/ue5\-main/Engine/Source/Programs/AutomationTool/Scripts/RunProjectCommand.Automation.cs\#L748
- passed to the app via am start here https://github.com/EpicGames/UnrealEngine/blob/ue5\-main/Engine/Source/Programs/AutomationTool/Android/AndroidPlatform.Automation.cs\#L4291\-L4303
If your game doesn’t rely on Quick Launch, maybe it would be possible to modify the way how you launch your game and pass it there?