I think there is no need to change things from Solasta and we should have the Solasta combat rules in BG3. Its a turn based game with tons of abilities so you have to click lots of stuff anyway. Reaction means that you can do something when enemies have their turn, so it becomes more engaging and you do not just watch when enemies act.
Prof. Dr. Dr. Mad S. Tist
World leading expert of artificial stupidity. Because there are too many people who work on artificial intelligence already