The scaling issue is that Apple only uses integer scaling factors. So any res that isn’t an exact multiple of the notional “1x” value gets rendered at a higher

The scaling issue is that Apple only uses integer scaling factors. So any res that isn’t an exact multiple of the notional “1x” value gets rendered at a higher res and downsampled. I think it’s more either “lazy” or “pragmatic” (depending on your view) programming to avoid various issues you can get with non integer scaling.