Bethesda's approach to DLC has often been a little haphazard in how they integrate into games. There are few things as immersion-breaking as starting Oblivion or Fallout 3 and receiving seventeen notifications spread out across the first few minutes, telling you about additions and quests you have no interest in tackling, and can't do anything about yet. In the upcoming Starfield Shattered Space DLC, it looks like it may be handled a little more naturally, but there's still a few things to be aware of.
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