What exactly is your suggestion here? No dice rolls? How would you then suggest incorporating proficiencies and bonuses?
If you are save scumming to undo a missed attack or failed dialog option I think you might be missing the point.
I'm save scumming because, for example,
I would never play a character that would let a child die.
This is not about fights. A fight is a player skill test, this also includes fight preparation and strategy and, for Larian games, also finding clever ways to "cheese" a fight, which was a super fun aspect of D:OS2 (I made a sport out of it on my last playthrough - to cheese as many of the fights as possible). A dice roll is pure nonsense and does neither test my skill as a player nor increase the number of options I have. It just acts as an arbitrary limitation on my gameplay.
How I would include proficiencies and bonuses?
Skill checks. Like in a fight. A hard fight may be terribly hard with that sword from 3 levels ago (D:OS2 methodology, lol), but doable with extreme player skill.
Likewise for conversations. Add a puzzle if you need to, but this whole "lets roll a dice if my character is able to say 'hi'" is pointless.
If it contributes, it contributes, if it doesn't, it doesn't.
