The community CRM team attempted to add the full list of languages to their languages custom block via https://lab.civicrm.org/extensions/optionsimporter.
In attempting to do this as per instructions from FR-Tech, a fatal database error occurred and the instance needed to be rebuilt.
We still need to enable this languages list relatively urgently on the current instance. Please review the full thread at https://app.asana.com/0/1204496006586688/1204720136034523/f