With resolution scaling it doesn't matter if you're using AMD or Nvidia, it's doing the same thing and looks the same on both vendors.

If your GPU supports it (RTX cards), you can mod DLSS into the game and then get (supposedly) better image quality, on the same level of scaling as the non-modded FSR2, or potentially lowering the scaling even more, for better performance, while still getting a comparable image as a higher FSR2 preset.