Likewise re: subtlety, the Windows Vista/7 Win+Tab animation used a 3D card stack, the Windows 10 ones uses a simple zoom-out. Both are 3D, but people seem to prefer the ones which don't scream "3D!" as much.

There's acryllic everywhere too, which is blurry transparency, but you might not notice it either.

That said: I miss Compiz wobbly windows. They were cool.