@RikD: hey there, pleased to meet you. No wonder I have not seen your name, you’re new. A reply to some of the points you make.
TiddlyWiki: I was and still am impressed by it. But like you, it was too much for me. After leaving it I always felt a bit, well, silly for not sticking with it longer. Your reaction to it as a tech guy makes me feel more at ease about my decision.
I too tried Zettlr and Joplin, as well as many other note-taking apps, but somehow they did not fulfil my not always well-defined wishes.
I eventually settled on Typora and VNote, both of which I used for a couple of years. After moving away from TW (used it in parallel with the other 2) I discovered Obsidian, and even though it is still in beta, I had this feeling of “yes, this is it”. The rapid development and lively community convinced me quickly to pay up.
I love the customisability with CSS sheets, I love transclusions, as well as the other features.
Re the graph: its usefulness became a bit clearer from comments here - Alexis has made some great observations.
And now there is also the local graph, in addition to the global one.
As for your number of notes, wow, that’s impressive, must represent quite a few years of gathering!
OK, that’s it for now.
I look forward to exchange with you again.