I haven't found that to be the case at all. Our party members are panicking and have big egos, but that's normal for adventurers in this world, and three of them happen to have dark backgrounds [...] And our party members are freaked out of their minds, along with having very strong personalities, which makes sense. What's the problem?
The problem is that this is your opinion, just as other people have other opinions.
And I second that the characters in BG3 are mostly unlikeable. Leaders have usually charismatic appearances, otherwise they wouldn't have people following them. And arrogance and big egos is not an obligatory trait of an adventurer. There are countless examples in literature and movies that prove the contrary.
