Handwriting I find completely useless, but drawing on a display can be quite OK even for me

theres a plugin for that - https://github.com/zsviczian/obsidian-excalidraw-plugin

Unfortunately, I find the delay unacceptably high with this extension compared to first class support from apps like Goodnotes, Onenote and Apple Notes.

Still love Obsidian - just wish drawing on it was a viable option.

Yep, Obsidian's latex support makes it almost ideal for writing math notes.. but because you can't quickly drop in quick sketches from a stylus (something like the Bear notes app.. which misses too many other features) it kills Obsidian for this usecase :(

That's a great plugin! It even lets you create links to docs from within the drawing. And you can embed one part of a drawing in one note and another part in a different note. I also highly recommend checking out the creator's YouTube channel: https://www.youtube.com/c/VisualPKM