I can speak from personal experience that NVIDIA GPUs will use bilinear scaling on Windows to display non-native resolutions on displays that don't have built-i

I can speak from personal experience that NVIDIA GPUs will use bilinear scaling on Windows to display non-native resolutions on displays that don't have built-in scalers. This isn't a rare situation either. As far as I know, every display with a G-SYNC module inherently does not support display-side scaling. Also worth noting, NVIDIA lets you choose whether to use their scaler or the display's scaler.