Yes and no. In BG2 spells had cast time which gave time for chanting. You don't want to add additional chanting time in turn based game - it will get very very old.
However, BG3 has this "aiming thing" - where you click on spell or ability, and character gets ready to use it while you choose the target. I could see them chanting in that moment - allowing it to be shortened if you choose target before the chant ends.
