direct skill conversion works on skill modifiers too, as long as it’s not secondary effect modifiers
good example is Blackwater Cocktail, a direct conversion would affect the entire line, since it’s a normal skill
but some skill’s have a separate additional effect in their bonus nodes, iirc stupid_dragon referred to it as “if it behaves like a devotion proc” extra effect outside the normal skill, then it’s a secondary effect mechanic modifier that wont get converted on direct conversion