I ended up with a bug after having Sovereign Glut in the party and raising two duergar with his spores. After they (the duergar) died in combat, I raised them with the scrolls of resurrection and they were added as party members. They showed up on the inventory screen and everything. Based on that, I'm really not sure there is a hardcoded party size limit.
Well, because there isn’t.
Party control in Baldur's Gate 3 is a complete mess that begs to be addressed. SAY NO TO THE TOILET CHAIN
