33% is the official data from EA, accumulated by Larian ( https://www.vg247.com/2020/10/27/baldurs-gate-3-patch/ ), but my point is, it is not because of his awesomeness (I like him, don't get me wrong) but because the game design. The one and only path leading to romance which is hindered by mechanic contradicting the story.

Characters urges you to do not stop and find a healer as fast as you can - yet, counter-intuitively, you have to take long rests and - again! - at specific points in the game or you miss key scenes.

Or specifically about approval: one moment you have a lovely discussion with Astarion about the ways to kill yourself in case of transformation, and the next he disapproves your decision to do just that - kill yourself in case of transformation. (Can not name quests that Asterion disapproves of but there are more than one, so, yes, that romance is problematic for me)

Add bugs to it, and a lot of content gets missing.