The video and guide I use on how to stretch a pizza is this one:
I know it’s been posted before, but I still find it the best and most helpful one I’ve seen.
We flour it in the bowl briefly , but we take it out of the bowl before we pat it down. We pat it down in the bowl and we don't spin the bowl.
0:39 - We pat it down like that and leave a mass in the center. But we don't form a crust on the edge. There's no outer circle. The whole dough is equal height.
2:08 - We fan it out sort of like that. But we do it faster and more aggressive to the point where there's lots of visible folds.
2:45 - While using the knuckles is viable, most employees don't do that. They toss the dough from hand to hand.
Watch this video for a few seconds: from 3:54 to 4:00. This is similar to what we do.
https://youtu.be/2pb5Fi9t2Ds?t=234