Thanks, Jens

Why did you try that variable instead of "org-pretty-entities-include-sub-superscripts"?

On 2023-07-24  21:12, Ypo wrote:

I wanted it, because I usually use (_) to divide words when naming my_files, and that looks ugly in Orgmode.

I had that problem myself recently.  Do `org-use-sub-superscripts' and its companion `org-export-with-sub-superscripts' help in your case?

See also <info:org#Subscripts and Superscripts>.