Use HTML Tag in org-mode file

[Thysrael]

I want to use HTML snippets in my org-mode file like that:

#+begin_export html
<p>Hi</p>
#+end_export

It workes when I use org-export. However it didn't work when I used org-roam-ui, which didn't show anything in the page. Could you tell me if my syntax is incorrect, or does org-roam-ui not support using HTML tags?