What's the difference between org tags and org-roam tags?

As the previous posts said, it seems that there’s no single answer and people use them for very different purposes.

If you’re replicating tags from other fields, then you may look into the corresponding section in the Org-roam User Manual.

I currently simply define tags to be my org CATEGORY:

  (defun org-roam--extract-tags-category (_file)
    "Extract category from the current buffer's \"#category\" global property."
    (cdr (assoc "CATEGORY" (org-roam--collect-keywords '("CATEGORY")))))
  (setq org-roam-tag-sources '(prop category))

I use a handful very simple broad categories like Personal and Work.
Categories anyway show up in the agenda and I have a simple way of filtering my notes.

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