While I don't mind openworld games, they definitely feel off, esp. with regards to the main quest. Can't save the world, gotta get this granny laid.

One of the only games with a open world that actually REQUIRED it for the game to make sense is Paradise Killers. It's a detective open world game on an island. The open world makes a lot of sense, because a detective has to find their clues. It's not a detective game if there's a counter of "clues found" or there's a linear progression. The game never tells you that you're done finding clues. Like a real detective in a real open world, you have to decide whether you've seen enough.