I tried to replicate it manually,but without very good results,until a friend of mine pointed out that is actually a blending mode called “Glow Dodge” on CSP. Tried to experiment with all the blending modes available in krita,and looks like the closest one is “Increase Saturation HSL”. But i’m not sure if is close enough
There’s so many blending modes in Krita it’s hard to say which would be optimal.
Colour dodge is my first instinct. There are many modes aimed at lighting effects such as Hard Light, Soft Light, Vivid Light.
I mostly use Hard Overlay as a general adjustment and effects mode - it’s capable of this kind of effect, but more complex to use than a singular focused mode like dodge.
You could also just paint it that way on normal - you don’t have to rely on effects!