my wife and I were really looking forward to BG3, since we had already played through DOS 1 + 2 with great enthusiasm in couch coop.
BG3 itself is fantastic, but the forced split screen mode for the couch co-op really isn't an improvement over the other two games. I can only agree with everyone here: it's just too confusing and spoils the otherwise great fun.
So Larian: if you would still add this feature, you would surely make a lot of people happy and give us many, many hours to enjoy this side by side with our friends together!