Yeah the game is pretty linear.
There are different paths you can take but it seem to lead you to the same thing.
But finish your game to the end and then try Malkavians(female if you want).
It's worth going through the same thing again for the dialogue.
Also nosfertu can also give you a change of gameplay since you can't interact with people like the others can and you have to stay in the shadows and stealth unless you wanna break the masquerade.
Certain quests that you simply get from talking to the quest giver doesn't work sometimes and you need to work around it so to speak.