I went in blind, curious about what route i'll get. I don't remember every decision but in principle I choose against killing people since it can't be undone for that timeline. and I wanted to learn as much as possible from this playthrough. I remember that the story still forced a couple of deaths.
I got Eva's route and learned that we are the invaders. Reading how some routes are just trash, I think I got a pretty satisfying route, but many things were still not explained and it's weird that there was no final boss fight, Eva just killed the boss in a cinematic kek.
I know I should play more and get other routes but I feel like this will drag on and I could waste a lot of time getting stupid endings that answer nothing.