Problems with baking - what do I do wrong and how to fix it?

So I’ve been having a lot of problems with baking and couldn’t get a decent result at all. No matter how I adjust the cage before baking I always get very weird results and disfigured silhouette of my armor. I don’t understand what I do wrong?

It’s not supposed to be that my low res is that low cause I’ve also attached an example of a very cool project whose low poly is even lesser polycount at certain areas, and yet it holds the detail incredibly well. How does that work?