Both Fuji and GB's backstories are very similar to the characters they're based on.
Fujitora was most likely a Yakuza then
Then it makes sense why Oda put their backstories in the SBS
Recycling backstories of characters they are based after is utterly pointless in a series that is being rushed to explain everything
Same reason why he fit Kaidoβs backstory in one page cuz itβs generic as hell
Meanwhile BMβs backstory is one of the most interesting and tragic yet, thatβs why it was 2 chapters long. BBβs backstory will be the same if not bigger and better
Fujitora and Greenbull will probably have a few flashbacks here and there but nothing too crazy