Have you seen the palm rejection configuration screen for One Note? It asks "how do you hold your pen?" And covers more variation in grip specifically with regard to the angle of your hand in relation to what you are writing. Another interesting facet of pen grip variation.
https://jonathanwylie.com/2015/02/26/how-to-use-the-onenote-for-ipad-drawing-tools/amp/
Funny part is I asked the same question here recently --> [https://www.reddit.com/r/Handwriting/comments/f0s72j/pen_grasp_help/?ref=share&ref_source=link]
I defaulted back to bending my fingers because of losing my stability in my hold. I think I have the Dynamic Quadrupod grip.
Remarkbox