I mean it has in my experience. I don't have any numbers on it, but when my other classes try to use a healing scroll it doesn't seem to barely even work. When my cleric does, it seems to give a larger chunk of health. But I am sure SOMEONE has done actual numbers on it in here lol. It appears the same with damage spells.
Fair enough, anecdotal evidence is good enough for me right now. I’m geeing myself to try another playthrough soon, it’s been a few months.
And yes undoubtedly someone has done the numbers; kudos to those who do because my brain is not set up to even contemplate about how one goes about getting that sort of info!