I really don’t see the problem here. The problem that some have seem to run into, especially back near launch, was the game would consume it all, leave no headroom and start causing performance issues.
I have monitored mine since launch, and yes, at launch I could see the signs of the same issues others were having, but for whatever reason, my system wasn’t choking on it.
It would sit there with the VRAM maxed out and play fine. It was odd perhaps, but it didn’t appear to hurt anything.
Now, as I posted in that thread I linked, I had taken steps to set custom fan curves and setup the system to have better thermal control on the card, which I believe helped a lot.
But I spent months monitoring both my system and the forum threads about the various issues.
Ultimately, I was seeing the problem complaints dying down (or some were giving up on it).
Mine has continued to run pretty solid though. Now my laptop is another story. It had been fine when I was still on the same driver version as this desktop. But since then, I played around with updating its driver, and after that is when I started having issues. Hell it started crashing in other 3D things, not just Diablo 4. And when I say crash, I mean crash involving the Nvidia driver files, because that’s what would pop up when it happened.
Fortunately, I rarely play games on that laptop right now, I primarily use it write car estimates and do technical troubleshooting for networks. Things that don’t really tax the game feature side of the machine. Last night I spent time doing updates and updated the driver yet again.
Will see if the next time it plays I have any video crashes, but if it does, I may be going back to the older driver. Sad that I have to.
As for your comments about card malfunctions:
Yes, some cards can bow under their own weight. It puts diagonal stress on the GPU can actually cause the heatsink to be pulled away from some of the parts if it doesn’t flex with the board.
Not only that the slot as you mentioned can take some punishment over time, and the GPU board near the slot can even crack in extreme cases.
Mine came with a support bracket that you attach to 3 of the slots along side and below the card. Then it has a stiff arm that sticks out to prop up the card to prevent the weight of it from bearing down and hurting things over time.
I even went and bought a kit that will allow me to put the new GPU in vertically instead of horizontal, to help alleviate this for that one.