Windows XP’s Fisher-Price design and OG iPhone lickable buttons were an excess we should have learned from instead of dumping altogether. It’s like music software started getting skins that were as non-rectangular as possible, and the whole industry went no, that’s silly, let’s stop.
Now you look at Windows 10 and it’s not even clear which parts of a window are connected. Windows friggin’ 95 had drop-shadows and relief shading. Why do modern OSs need to look like a Kraftwerk album?