Larian Studios Forums Divinity - Original Sin Divinity - Original Sin - General 5% only completed the ending?

Quest markers only work if you have quests designed to be solved in one way and run through in a linear fashion. If the game is designed without an explicit quest structure, and multiple ways to do things, it isn't quite as good of a fit.

A better journal could help with things like getting back into the game after a break, though.