Order of appearance:
scorpion
Obito
Deidara
Hidan
Kakuzu
ferret
Nagato
Yahiko
Xiaonan
Kisame
Absolutely
It is mainly written in the order of death in the original work. Obito appeared first because the three parallel worlds overlapped. Part of White Zetsu's organization followed Obito, but the official appearance was definitely the last one.
The main perspective is that of Scorpion. Because the members of the Akatsuki organization have traveled through time, they all retain their memories and part of their chakra (that is to say, they have all been shaved off a bit, but they are still very strong), but there are some special cases who have been reincarnated, such as Lin (who has a love line with Lin!!! What Kishimoto dare not do, I will do it)
Purpose: Xiao organizes a team fight, don't think that only Voldemort can be called Voldemort