FUT stretches the scalp

It just made me realize something though, will stretching the scalp with FUE greatly decrease hair density? Even with a larger FUT session, since there’s stretching involved, does that decrease hair density? If so then what is the difference in a decrease in density due to either FUE or FUT since in either one, the size of the scalp does not change and you would be taking whatever hair is available and redistributing it over the same surface area.

It is true that FUE will stretch the entire scalp (very modestly), mostly on the back and sides, but elsewhere.  The difference between FUE and FUT is that FUE is a patchy decrease in density confined to only the donor area (3 inches high around the back and sides of the head) while FUE stretches uniformly all around the head but mostly in the back.  FUT also reduces scalp redundancy, which FUE does not