I wanted something that operated on plain-text files kept in a local folder, and that also had a graph view: that was the feature in
org-roamthat really made the difference between me just writing notes and seeing how they fitted together and building ideas out of them. Obsidian has both of those plus a very active community and rapid pace of development, so that was what I went with in the end.
Really great post on her thought process in choosing to give Obsidian a try. I swear, y’all are trying to get me to go back to Obsidian!