Normally, if Aura detects and can address the Graphics card, then the Smart Mode is going to function on that Graphics card as well.
I have a Gigabyte RTX 3070 simply because it has good specs and was more affordable anywhere i looked to upgrade from a GTX 1660 Super, installed Gigabyte's RGB Fusion, selected a pattern with color, applied it, and uninstalled RGB Fusion. It functions as intended even after uninstall. Aura controls my Mainboard and 1x ADD Header(CPU fan and CPU Block in parallel.) I have a Asus ROG Strix Z370 series Motherboard.
What's weird is that on a laptop I would expect it to be there by default. Armoury Crate can detect GPU temps just fine, but the GPU settings don't show up when selecting Smart mode on either Armoury Crate or Aura Creator. I'm still confused as to whether it's just not supported on ROG laptops, or it's an issue with my system.