Both slides are highlighting five key points. One has a lot of elements and text, and the other has a simple half-screen image with the five key points outlined. Sure, the left one looks cooler and nicer, but you decide which one would do the speaker a favor.
Does this mean that you should not download these free templates? Of course not.
Download them and copy elements that can help visualize and make your slides better. Take all the inspiration you can from them. But please, do not feel the urge of typing in your own content in the template as it is.
If you do that, your audience will most certainly experience death by PowerPoint.