Thanks for trying to explain, but that's not accurate for Unreal Engine. UE5 is completely free to download and use for game development – no upfront license is required. Epic Games uses a royalty-based model where they only take a 5% cut of gross revenue after your product reaches $1 million in lifetime earnings. And we don't earn that much, believe me :D
There's absolutely no need for any cracking tools or pirated versions, as the engine is openly available through the Epic Games Launcher. So yes, it's just an extremely common false positive