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

[BCBUD]

Scrap is Mike Tyson pushing off the jab or is he pivoting? We all trust you since this your style you're the expert.

Its not my style, though I appreciate it. But its a good technique for a short Heavy,who can punch. Not many other weights are successful with it.

Push or twist?

Push down and twist.

Here is a proof of that watch Tyson's feet both pointed towards 12 o'clock his pushes down than twists.
Scrap why is it that most gym don't teach to point both feet at 12 o'clock?