We have same issues. We use custom fonts. Some UILabels' font in our app built on Xcode 15 beta were changed from 'medium' style to 'bold' font weight.

We still have same issue on Xcode 15.1 beta.

I find PNG with alpha in Assets.car is compressed with 'Gray' color space.

I think 'Gray' color space is no problem. But there is a huge difference of compression results between Xcode 14 and Xcode 15.

same here