Final Fantasy XV Windows Edition DLSS Test

Ran the game on my 2080 Ti at 4K with DLSS and then changed my primary monitor back to the 1440p high refresh rate one. Left the settings alone aside from changing it to Borderless Windowed mode. DLSS was still enable and the game seems to be rendering at "4K." Dipping substantially in FPS with no AA at 4K, TAA, and FXAA turned on, while picking up with DLSS. So, it works, I guess?