I agree Solasta can be painful to play. Abilities like Paladin's Smite could easily be changed into an active ability that wouldn't interrupt your attack every. single. time. I passionately hate the freezing of the game mid attack animation right before impact. They could have at least placed the roll and Smite choice before the animation starts. And I don't like crit fishing mechanically. It makes much more sense to charge the weapon before attack than somehow injecting divine power into it in a nanosecond AFTER it lands in a soft spot.

They should just convert as many Reactions as they can into active abilities, and only keep the reactions that really have to be reactions.

Other uses for Reactions came up in other threads as well, like catching a potion thrown at you. A potion somehow affecting you through armor, clothes and skin is probably the dumbest home brew in BG3 and it really has to go.