Serious Sam 4, 6900XT using Vulkan has stutter and pauses, DX 12 is fine, Variable Rate Shading is pixelated on the 6900 XT but is not on the 3080 Ti plus the 3080 Ti flies using Vulkan. Is that developer or drivers? Both need to work together if possible, Does AMD driver team have open doors for developers, help or issues? That is the only notable issue with using the 6900 XT I can think of. Nvidia GF Experience is just a ghastly program, the new performance tuning section of it is a joke, the overlay for in game performance monitor looks almost the same as AMDs. AMD UI is superior to Nvidia's, profiles for each game, OCing, monitor settings etc. I just conclude there is no right general answer to AMD or Nvidia drivers, depends on what you are doing and program being used as well as Windows updates can throw some snags in there.