Worth writing addendum with 3.77?

I want to apply to Columbia and NYU, but I’m below median at both. I graduated from university with a 3.93 in a stem major, but dual enrollment from high school drags me to a 3.77.

Is there a max GPA past which addendums are not good to write? Is there even a point, since I assume they can see that my GPA was higher at university? I’ve seen addendums recommended in similar situations which is why I ask.