You mean to use your posture to reduce the flow ?
I always found the best breastfeeding advice on kellymom.com
https://kellymom.com/bf/got-milk/supply-worries/fast-letdown/

Is ithis the method where you actually lie on your back and put baby on your breast so the milk dosn’t flow into baby’s mouth so quickly that baby can’t swallow quickly enough?

Never heard of it, but I’d be inclined to say that if it works and there are no safety issues, go for it.

lol it is a demand and supply kind of world now. baby wants milk, baby gets milk

I’m not actually sure what posture breastfeeding is

Glad to hear some are still doing it. It really makes sense.

Not sure if it’s a no-no, but I certainly know of people that have had excessive milk and fast flow do it.

It worked very well for me when I had bub no 4 . It slows the milk flow down when you have too much milk! But my bub no 4 is almost 37 years old now! lol!!!

I haven’t actually heard of posture breastfeeding so sorry can’t say…