How does this beat my markdown + vim + git stack? Granted I don't have Zettelkasten or fancy referencing features with this but I can always do a simple grep.
For instance, dataview plugin can query other notes and render result in place. So for example, you have a few notes with a tag "book-review". And in them you use YAML preamble to track rating you gave the book. Dataview can render you a list of books you reviewed and their ratings (even in star form), individual rows linking to the specific notes.
Another example, built-in TeX rendering support, which makes it much easier to read math formulas. Likewise, built-in Mermaid for diagrams.
Presumably it beats your stack because it's all bundled together in a convenient package.
(In case it isn't: links, rendering, and stuff like the graph that gets constructed as you link are _very_ helpful to my workflow)