If its built on UE5 that is likely to be dogshit. The issues seem to be exactly that the physics are jank in UE5 as well as other issues with consistent performance. If this is just them fixing those issues and renaming, sure that works. But if they could do that why did they not fix it when UE5 was getting dragged though the mud?

I am thinking it will work on RL just fine (likely with a lot of backend work) but 6 like 5 will not be stable outside the showpieces.