So I think each character is more complex then just a label. They are intentionally doing this by the way, and Wizards asked them not to define them by alignement. Larian was going to do a lot with alignment. But Wizards said no that is why the characters are more like this. To be honest maybe its a good thing if they don't do an alignment system.
tbh, i dont think this is the best choice for a BG game to remove alignment and id personally want to see it still included in the game, even if it wasnt that important to the gameplay just for roleplaying purposes, but its just another head scratching decision in a rather long list by wotc if you ask me, even outside of BG3. like, if alignment isnt important, why so much emphasis by larian to start ea with evil characters and do evil playthroughs? and why were there 'evil cleric' tags in earlier game updates? even tho they seem to have been removed or hidden now. it just comes across as an unfinished system and conflicted messages for the player base so i hope larian takes feedback during ea to improve on the dynamics as i think alignment (and expansion of the character tag system in general) would go a long way in enhancing the overall gaming experience