
If you want to play Deus Ex there is a fully voice acted mod called Lay D Denton. It’s great. https://www.moddb.com/mods/the-lay-d-denton-project/downloads

That’s not an issue, that’s an rpg: the ability to make different choices (informed and uninformed) leads to different experiences and different events each with knockon effects for thr story. It’s only a problem if the game isn’t clever enough to account for all of the different things you’ve done.
When you turn it on it boots to a controller friendly UI that shows you all your steam games. No setup, no hunting for drivers, no bloat.