I swear I don't usually complain about UI styling updates, because it's usually not a big deal - but this looks really, really bad [1]. It's less functional with bizarre transparency choices destroying legibility, and big rounded corners taking up more dead space. And stylistically, the layouts just look unbalanced and amateurish (It reminds me of what happens when I attempt to do CSS layouts). Most Linux desktops unironically look better than this.
https://arstechnica.com/gadgets/2025/09/macos-26-tahoe-the-a...