It was my understanding that newer, younger leaves photosynthesise better than the big fuck off satellite leaves.
I do it situational. Depending on your ambient climate and humidity, strain,lights and enviroment do as you see fit.
I also do it all the way through to reduce popcorn, increase air flow, reduce humidity and to generally get light down into the plants, but nothing extreme.
The debate on defoliating is like Covid, it will never end. But I don't bash people for doing or not doing it.
If I monster cropped some cuttings, yep, them fuckers are getting brutalised cos they go ape shit and need controlling.