Japan-based Nagao unveiled their latest VGA mount "N-VGA-PROTECT," which prevents graphics cards from sinking in their own weight, dropping off during movement and transit.... Nagao released graphics card mount with ability to mount 120mm fan
Did they IRON instead of steel to keep down costs, if my 3070 needed support i`d put it at the end that is not supported by screws in to the case already.
This brings back memories of PCI-bracket fans to add additional exhaust in the system. The screws at that end might not be supporting it very much - there was a video by Jayztwocents where he showed a couple of different cooler designs, and depending on how the cooler shrouds were connected to the faceplate or not, they would sag or sit straight. A tiny plastic shim would fix the sag on several of the cards even.
