Afaik it’s patented.

https://www.reddit.com/r/MacOS/comments/qlnwzx/window_snapping_should_be_the_default_window/hj490vu

… btw

I would do the same as was the case with cinemas: anybody can buy any streaming content. If you produce a movie, you are forced to sell it to anybody who is willing to buy it. (Just like every cinema can have any movie which wasn’t the case back then. There were specific cinema exclusives before the law forced this shit out.)

Yepp, just the tip.