I and my colleagues are using the hole notes feature a lot to avoid forgetting measurements and tolerances.
We also define tolerances in the model so that they are displayed through the hole notes.
Unfortunately there is no <formula> for the drill tip angle in the hole notes.
I lately created a post on the forums, but the answer I got isn't all that helpful, because it doesn't display the tolerance I defined in the model.
(https://forums.autodesk.com/t5/inventor-forum/drill-point-angle-in-hole-notes/m-p/8680533)
Currently we are adding the drill tip angle manually, but that's far from a perfect solution, because the changes in the model aren't transferred to the drawing. (See pictures below)
Adding the drill tip angle manually to the hole notes
The finished hole note in the drawing