You must be joking? The companion side quests are all quite good but I am not attached to any of the companions the way I was in bioware games.
Companions in bg3 are shallow, we know nothing about them other than their personal quest and they want to sleep with you.
Furthermore to be good companions they must be believable, with believable personality and motivation, bioware had this bg3 does not. Consider that you can have a relationship with any character as a Dragonborn, is it believable that every npc you meet is into lizards? No for this and many other reason the companions in bg3 are not believable. You might say that there were interspecies relations in mass effect, true but the characters in game acknowledged they were doing a taboo and difficult thing, it was addressed bringing it back to the realm of the believable. The companions are the weakest part of the game
