https://wccftech.com/baldurs-gate-3-guide-character-creation-explained/

Although there is plenty of room to min-max your character in Dungeons and Dragons' Fifth Edition, the game is in essence a storytelling medium. This means that you can create more or less any character you can imagine, no matter how good or bad they would be in a fight or conversation.

Baldur’s Gate 3 is very much the same, in the sense that you could make a character that isn’t particularly strong. Thankfully, Baldur’s Gate does try to recommend skills and abilities in the character creation, but there is still plenty of room for customisation.