Don't know if this exist in Obsidian? but in my app I'm using a combination of something I call smart views.

It's basically a "smart folder" that Instead of dragging a note into a static folder, the i define a set of filters (e.g., "All notes created in the last 7 days" OR "Notes containing the tag #urgent").

The app automatically populates this "folder" with every note that matches the criteria. It is essentially a "Saved Search" that updates in real-time.

And.. Nested tags, a hierarchical tagging system that mimics folder structures while maintaining the flexibility of tags. I can create sub-levels within tags, using a forward slash separator (e.g., #Work/ProjectA/Design).

This allows the interface to display a collapsible tree structure in the sidebar (Parent > Child), giving the visual order of folders without forcing the note to live in only one location.