Battlefield 6's unique destruction mechanics are not possible on a generic engine like Unreal Engine 5, but this is only one reason why the series will hardly leave the Frostbite Engine behind.
Speaking with Spanish publication 3DJuegos , Senior Producer David Sirland commented on the possibility of the series ever switching to Unreal Engine , saying that the destruction mechanics seen in Battlefield 6 are not possible on a generic engine, as the Frostbite Engine is tailor-made for the new entry in the series and its features as much as the studio is tailoring the game itself for the engine. Achieving similar results on a generic game engine, pushing it to the limit, is achievable, Sirland added, but the developers are specialists with the engine, and he thinks this shows in the game.