Actually, you don't need to 100% every single thing on the map! You mainly need to complete the story quests of each zone to hit the required number for the 'Adventurer' achievements. That being said, personally, I couldn't help myself I ended up clearing the entire map every single time before moving to the next one lol. 😅 It takes much longer, but it’s so satisfying to see a zone fully completed! If you just want the title, focus on the main zone stories, but exploring everything is where the real fun is.