BG1 and 2, as well as several other Bioware games such as KotOR, have rounds as you described but all characters in combat take their actions concurrently withi

BG1 and 2, as well as several other Bioware games such as KotOR, have rounds as you described but all characters in combat take their actions concurrently within the round. It's not like BG3/D:OS etc where only 1 character's actions are taken at a time.