OK, this game is big, and by big I mean MASSIVE!! There is Main quests, sub quest of these main quest, then your usual side quests, and then smaller quests that seem to be random, but my change depending on what choices you have made. Then there is bounty quests, and also cultist quests (you’ll under stand when you play the game)
Honestly, this game just gets bigger the more you play it. Read last night some guy has got to level 33 without touching most of the main story (which is bloody great btw) I might do loads of side quests to get my level up a bit before going on with the story.