Skyrim is a good example. Huge open world but even without markers you know what you're doing. Quests doesn't spread out like in Divinity. You don't miss quest items. You know what you're searching for.
About puzzles, they are not fun. I know you can't create puzzles like Portal's but you don't need to. You don't have to put so many pointless puzzles in an Action-RPG game. Like i said, ofcourse some people like it and it's only my opinion.