SPOILERS, kind of.
I was concerned too, Yeen, but the game makes the good ending obvious enough, and with using your moral compass too, you should be able to save everyone easily enough. Even if you did make the wrong choice, you can save and reload or backtrack easily enough. Even if you did accidentally make the wrong choice, there's no overly mean violent content or anything like that, it will just be made pretty clear that you didn't choose the proper choice to get the real ending.
So don't worry, just save your game when you encounter a choice you're unsure of, or if you really don't want to be bothered look up a walkthrough, and you'll see the proper full game and ending. Highly recommend this game for many reasons. One of which is showing the horrors of fascism, hate, and late-stage capitalism in our time. But it's also very emotional and loving. It's really good. See my review.