[kemayo]

Not really -- you're only locked in to the extent that Obsidian makes those things easy

If Obsidian went away, I'd still have a bunch of text files that I understood, and I'd know that I could find things tagged with #foo by using grep, that the [[links]] just mean to open links.md, that an image should be opened in a browser, etc.

[ovao]

Additionally, it’s pretty to extend most Markdown parsers with extended syntax. The worst thing that happens is you have to fork a parser to add extended syntax…which isn’t so bad.