[jamesgeck0]

You’re moving the goalposts. The “sorting, search, linking, reminders“ features you initially mentioned are all easily available elsewhere. A highly specific Obsidian-specific workflow is harder to replicate, but everything you initially mentioned is pretty basic functionality.

[imperfect_blue]

The features may be available in the new app, but your existing setup will break. Your existing relations and notes will break if they used any Obsidian specific feature, of which there are plenty. Any notes you use to dynamically summarize/organize/sort/filter other notes will break, and probably can't be trivially recreated in whatever app you switch to.

The most basic type of links, links to other notes, will generally work fine yes. But what about links to headings? Links to blocks? Links to attachments? Embedded blocks? Embedded files? The more you've used Obsidian's features, the more stuff will break.

Searching by tags is trivial. What about searching by properties? By done/undone status? By note attributes, by tasks, by attachments, by block-level searches? What about filters?

The simplest use-case being, if I simply want to view the list of all undone tasks across a set of notes on a separate app, sorted by priority, as I can now on Obsidian? Not trivially possible, as far as I know.

Reminders and any calendar-like functionality are definitely not carried over across apps, either.

Like I keep saying, if you limit your functionality to just markdown basics, it'll work fine. Start using the exclusive features of the app or even just the tasks plugin and it's no longer so simple. Something like the Kanban plugin is just impossible.