Solasta made it work, more or less, and Pathfinder: Wrath of the Righteous had some pretty ridiculously high powered abilities.
Solasta was also capped at lvl 12 until the most recent dlc. So it's possible BG3 will also got that route.
I will say, as someone who finished Solastas recent dlc this past week, that the climax of palace of ice seemed noticeably less challenging than the base campaign for me.
