Modern Drupal plain text as HTML via a field formatter

https://www.drupal.org/project/html_field_formatter

OR maybe https://www.drupal.org/project/advanced_text_formatter can do it.

https://www.drupal.org/docs/contributed-field-formatters/text-plain

Via https://sarahcodes.medium.com/getting-drupal-8-field-values-in-twig-22b80cb609bd