Shenmue 3 has great variety in main quest:No. What separates good open world games from bad open world games is their construction. Shenmue III is a mediocre open world game. And to be fair, it's not really open either considering backtracking isn't possible either.
More variety ? Shenmue III lacks variety in it's main quest.
Replay value ? Same thing here.
Hence why I believe instead of trying to tick boxes everywhere, they should've compromised on some open world aspects and focus on characters developpement, world building and story.
1.You have QTE mini game.
2.You have some parts where you have to make money.(Which you have more ways to do that compare to Shenmue 2)
3.Combat sections.
4.Training sections.
5.Asking for direction parts.
6.Some extra story mini games.(like that hide and seek mini game which was inspired from a quest in witcher 3 or that mini game of describing the fighting style of that guy.)
7.Exploration sections.(Opening drawer sections)
8.Story Dialogues and cutscenes.
Shenmue 2 didn't have more variety than 3.
3 also has more Replay value than 2.
1.A proper new game + mode.
2.Difficulty setting.(Which previous games lacked)
3.Much more mini games and optional quests compare to previous ones.
World building and story writing in open world games are not as important as gameplay and variety.
GTA games don't have masterpiece storylines, but they have a very great variety in gameplay. GTA is the king of open world genre because of the 1000 different things you can do in those games.(No open world game has managed to compete with it so far)