Its not Windows.
BetterTouchTool.
It's amazing how customizable it is. It almost makes me feel that I'm being more productive than using a keyboard+mouse.
Ex.
4finger down. show desktop
4finger up. expose
4finger left/right. spaces left/right
3finger up. open new tab
3finger up. close tab
two finger tiptap left/right. switch from tabs in browsers
so nice!