Just in case anyone stiill has this card and gave up fighting the good fight to get it stable. I swapped PCI slots a couple days ago after trying every possible fix/driver version/underclock you can possibly find on the internet and its been solid as a rock ever since, as dumb as that is.

Asus Z390-P mobo. If it continues to run without crashing for the next week or so, Im just gonna chalk it up to a beat PCI slot. Wish I wouldve tried that first, couldve saved alot of frustration lol