True or false most pro boxers dont pivot the foot they push off it?

[SugarBoxing]

But if you look at the video clip of sugary Leonard he barely moves,his right heel is planted and he doesn't kick out the left heel much.
the left hook filling the gap with sugar ray leonard masterclass | www.SugarBoxing.com
I'm not trying to be argumentative this is just a discussion

To be objective, I got a lot of insight from Scrap, it is just that the goal of this article was to show the improvement or progress , how to make things better. The goal was not to show how to throw a perfect hook.