Unreal Engine 5 has been around for many years. A lot of projects have been made on it, but developers still can't master it.
Even five years after the release of this engine, we still get unoptimized games that don't work well even on top-of-the-line PCs.
Have developers really not learned how to create games on Unreal Engine after all these years? Or is this a problem with all modern engines and technologies? And most importantly, why were developers able to do 15 years ago what modern developers are unable to do?