Soundwave on 10 September 2020
4K upscaling doesn't require the developer to do anything, Nintendo wouldn't be briefing developers on that.
If it's DLSS, then yes the developer has to have actual 4K assets for it to work and that would require Nintendo to have to brief developers.
So if they are briefing developers it's likely either a native resolution solution or Nvidia is providing them a chip with at least Turing level Tensor cores.
