It clear she never using her full potential even if BZ state she is gaining back her full power
For someone that fight full potential, nothing will scratch them even when they don't done anything just stand there
Sorry to brought DBZ matter here
Freiza when gaining his final transformation is unscathed with every attack given by Z type team 7 that is Gohan, Krilin, and Picolo Jr. and also vegeta
But there are many contradiction between full potential and making some situation to happen
In one panel FRSTBB done not much to injured Kaguya even she not been thrown away by the explosion. That seem full power if we related to Freeza
But currently when she got punching from not full chakra Sakura with Shanaaroo, Kaguya body and head reaction to that clash is unbeliveable. And BZ state she gain her full power. That don't seem like full power compared to Freeza
Do the math