Yes, it is a markdown notes application. This is the core, think Notion but local-first (Sync is a paid extra, or you can use Syncthing or Git to DIY sync).

You can build much more complicated systems with it (I also have it as my todo app and have it pulling out todos from all my notes and prioritising them), or you can use it as a slightly nicer version of using vs code with a folder of markdown files, which was my precious system (there's also Dendron, which is the same idea but as a vs code plugin).

haha, thank-you for trying to help, but ALL of the examples you used are nothing that I'm familiar with.

So I'm thinking that this is a _ME_ problem and not necessarily a 'Product Description' problem.

After installing it, and typing in a few things I notice that it's similar to ZIM (another desktop wiki app) on the surface.

I also appreciate that you corrected my misuse of "markup" when I should have said markdown without making me feel like an idiot.

You weren't wrong in your use though. Markdown is one of the markup languages.

Also yes Obsidian is pretty much a wiki.