Agreed!
With MacOS I felt there was a major quality change for visual quality & animations when SwiftUI was used BY Apple for the OS and applications.
I'm not a developer, but it felt there were areas where an icon or window just didn't visually work the way it used to or SHOULD in placement or animation.
The hackish-ness hasn't changed over time: there are so many examples throughout the OS/Applications that I want to say "it was always like that", except it wasn't: Apple set the bar and it was high, the quality was exceptional.
I feel there are a lot of hacks going on with SwiftUI to achieve the same UI placement or animation.
Last quick note I think about often: a lot of analog creation was really hard. It still is. When it comes to digital we've been thinking we'll come back to things later, but never do... we build more bad on top of bad... sadly.