(Some function fails for some Windows settings, so I reported it as a bug, but it was moved to Bug graveyard and I was asked to resubmit it as a feature request. So here it is rephrased as a feature request.)
When opening graph view, zooming in and out with the mouse wheel fails. As I just verified, this is because my mouse wheel is set to scroll one full screen for every step, instead of several lines (I don’t have Windows in English so I can’t quote the exact UI strings).
The Windows app might check for this setting and adapt the zoom behavior accordingly.
Change the mouse scroll Windows setting. Note that I have been using this mouse setting forever, and use it every day since I do all my web reading with it. Therefore I am not actually using this workaround, as this mouse setting is even more important to me than viewing my notes in graph view. Here’s a link to someone who said they have the same issue (not the OP of the topic):