A small request :)
I have been thinking for some time that some limitations of GS at the graphic level could become part of its strategy and "become strong" in the area of pixelated games. I don't know the engine code, but a priori, it doesn't seem too difficult to think about adding a "nearest neighbor" scaling option that keeps the image in focus when it is scaled.
With devices with increasingly large resolutions, having this option makes a huge difference in the handling of images and memory requirements.
I understand that doing this for each object maybe can be a bit complicated, however doing so for the final scaling of the screen, it should be well possible and it would be to add an option "stretch with nearest neighbor" in export and viewer.
@adent42 how about this?