Made by designers, not engineers
The 3090 is a card that can get very hot on the backplate side due to the VRAM placed on that side. The purpose of a custom version is to improve the weak points of the basic version with better cooling, overclocking...
In short, the goal is to improve the performance of the card. Here, Zotac does a great job by not putting thermal pads on 6 memory chips on the back of the card. And yes, it's not interesting because it's stuck to the plastic of the leds so that there is a little more light on the back of the card and so that it looks "nice".
But no worries! Zotac has the solution to prevent it from getting too hot. By limiting the performance of the card through the BIOS, your card should be able to survive despite the poor heat dissipation! Yes, the card's performance is limited...
In short, the worst 3090 on the market, you can see that there is no reflection before releasing such a product with such a price. To be avoided!
