> Up scaling the image in chunk creates loads of semantic issues.

No, tiled upscaling generally does not have that problem significantly (compared to direct generation at native model-supported size, which doesn't completely avoid that kind of issue), since the composition on that level is set before the upscale (direct tiled generation does, if you aren’t using something like controlnet to avoid it.)

> You don’t see problems like these in non scaled images.

You actually occasionally do, but its fairly rare.