Not really, the bigger the world usually the less of a content you will get.
The smaller a world is, the more content there is. Sometimes there are games which are in-between.
All that said: I am sick and tired of pointless side-quest's where you are basically a delivery boy or a petty assassin.
Open world games are very overrated but it's nice those times when a good sandbox game arrives and manage to somewhat deliver a good experience
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