Can anyone help me understand what for do we need "create bonfire" in this game?
I completely understands its usefullness in tabletop, but here? O_o
It is an ok damaging spell that goes off of saving throws, so if your firebolt has a low chance the bonfire might have a better one. In BG3 it likely could be implemented to do a 5ft square so it'd be a tiny aoe but would have the situational chance to hit multiple targets. And if larian wanted a cantrips that could ignite flammable things or create a surface, Bonfire would be the cantrip.
https://www.dndbeyond.com/spells/create-bonfireGenerally more options are better and I advocate for adding everything from the Main players guides. (PHB, Xan, Tash, and maybe Volos or Swordcoast)