Confirming that those config values (in #4) in combination with dummy values in /admin/config/stripe seem to work perfectly.
Thanks, @vonFrakas.
- πΊπΈUnited States solarDog
#4 does not work for me using Stripe 2.0.0-beta2 and Drupal 10.1.6. It would be really helpful if the documentation explained how to properly add the settings to the settings.php file.