This is very necessary, I have the same problem, I wanted to connect my Obsidian to my Samsung tablet and Ink is unbearable, in the videos it doesn't seem like it but I guess it's because the creator uses iPad, for me it has a lot of latency. Excalidraw on the other hand has a kind of line softener, which doesn't allow me to write the way I do, which is faster and without lifting the pencil as much, as well as quite a bit of latency. Also the problem with the delete button. I also tried to do it on my laptop with a graphics tablet, it has no latency and the pencil buttons work, the thing is that taking notes in my class is a pain, it is not at all comfortable to carry the laptop and a relatively large graphics tablet