It is a tough challenge to design something that isn't horrible. It takes a surprisingly small angle to go over a berm really for rifles. When a local range in Garland was having a problem, I did the math to see that just a tiny miss over the berm could clear the large hill behind it, it was pretty surprising. So the overhead covers have to be really low if they are close to the shooter. As they get closer to the target, they can approach the height of the berm at the bottom. But then height needs to be more. Some I have seen were not necessarily heavy for stopping bullets, but things like lighter wood or sheet mild steel, enough to knock a bullet out of its flight path and make it tumble, keeping within a smaller impact area. However, that looks worse since they get holes
I don't know if the NRA or NSSA range-construction books might have more info.
Anyways, i thought I had video from Haltom City range but I deleted from YT and can't find it. That was all bullseye and plate shooting from fixed positions, but at least standing or prone. Some places I have seen were bench-only to control the muzzle angles. I don't think I have seen a run and gun match at a range with these devices, besides indoor IPSC which is a different thing.