I was shocked to find out the inconsistent corner radii in Tahoe was an intentional design decision. I figured it's so obviously bad that it was just sloppy work. But one of the WWDC session videos bafflingly clarified that it depends on whether the app has a toolbar or not.
replyhttps://youtu.be/VqTn9NgiE1s?t=439
I can't imagine how the people who signed off on that were put in charge of design at Apple.
I am fairly convinced this was all designed only in graphic tools, and looked nice in static mockups, like those fake desktops with overlapping small windows widely spaced, etc. The design folks probably all had giant studio displays with plenty of room, etc.
replyThen the reality of "what about toolbars", "what about dark mode", "what about laptop screens", etc were all afterthoughts and resulted in bolt-on fixes like that.