For me as a player, it's about agency. I need to be able to make meaningful choices. And by meaningful, I'm talking about different actions leading to different consequences. That doesn't mean I have to avoid situations where I must choose between 2 or more bad options, but I do want the effects to be different. If Choice A and Choice B both lead to "You die," I'm not very interested. But if Choice A and Choice B lead to "You die but you save your friends" or "You die but your fame lives forever," that's something I can sink my teeth into.
Agency, for me, isn't about the style of game so much as the choices it allows me to make.
As a GM, I'm usually in it to enable agency and empower players to make meaningful choices. I GM when I'm not sure how I think characters would affect a scenario. Besides, if I wanted a script, I'd write one.