Sorry for answering so late, was busy playing solo q and testing builds and getting more champion mastery :)

I think this defend a winning game state is super important for Yunara in comparison to other adcs. While experimenting around I lost games I would have never lost playing Jinx, Aphelios or even Zeri. Somehow Yunara is squishy like Ezreal in some game states like middle of laning phase around minutes 4 to 8. Or in mid game somewhere around the 2,5 items spike. It is weird, but I think part of this is because of Kraken Slayer autopilot and wrong spacing. I figured building some armor and magic resist, healing myself up with Life Steal helps A LOT with being more consistens with Yunara. Resulting in better KDA, less deaths overall, more gold farm and better overall feeling in games (even in hard losing matches you will feel good). Also, the item components of Randuin's Omen or Kaenic Rookern can help a lot to stay alive.

I need more time to fully understand Yunara, but I think she has the identity of Ezreal with some unbalanced late game damage that is higher than Jinx or Vayne. But the mastery curve of Yunara is very weird. As a Zeri, Jinx player it took me a long time to make Yunara more consistent in my games.