I feel like the category would have to finish the "Free all the Divine Beasts" Quest and optain the Champions Tunic from Impa? What do you guys think?

Champion Tunic comes from the memory quest which doesn't fit much into the divine beasts. Also, I'm not sure what triggers the ending of the "Free all the Divine Beasts" quest but just killing the bosses inside the dungeons should be enough of a criteria in my opinion.

weird, i didnt do anything for the memory quest, after i finished the 4th beasts, the goron told me to visit impa, then she gave it to me

Mmmmm maybe you are right, I will have to double check that. I was almost certain it was from getting your first memory.

Alright, it seems like I was right. After doing my first all dungeon speedrun I did not collect any memory but completed all 4 beasts and after talking to impa did not receive the armor.