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

[showmi]

Understand biomechanics , a good way is go for a walk, a slow one. understand what is happening and why.

I'm standing not walking!

You sure are.

But why not dig your heels into the ground and throw a flurry of short punches battering ram.
https://m.youtube.com/watch?v=7j_lsIPgMcE Think shoe shine.