Gotten Lastation, Leanbox and Lowee endings. All that’s left is true ending now.
I noticed that after meeting true ending requirements, as long as I beat chapter 6 boss, the game will advance to chapter 7 and true ending for sure. That means after beating chapter 6 boss, I no longer have to worry about shares and can go nuts; trying to beat every coliseum battles, getting the most powerful equipments etc.
What this means is that I don’t have to go through another playthrough after getting true ending. Instead, I can try to collect every remaining trophies (like maxing everyone to level 99) before getting to true ending, and the true ending trophy shall be the last for me to unlock.