Nowadays Windows is filled with adware and is fairly slow, but it wasn’t always like this. Was there a particular time where a change occurred?
This is something Apple got right. OS X 10.0 was good and they’ve made lots of incremental changes but didn’t just arbitrarily change the whole “centered application dock at the bottom and menu bar at the top” situation. When new form factors emerged, they just made a new interface and didn’t try to hot glue a mouse/touchpad OS and touchscreen OS together for the fuck of it.