Q: iCloud Storage Upgrades: Auto-renewal options

Is there a specific control option for determining whether or not an iCloud Storage upgrade plan automatically renews or not?  From this article iCloud storage upgrades and downgrades - Apple Support it seems to suggest that if you simply do nothing and leave it alone, it will auto renew each month, but if you cancel your plan, it downgrades on the renewal date.  I seem to remember that there used to be a 'Auto-Renew' option in the Manage Storage Plan screen.

Am I remembering wrong?  Was there ever an auto-renew option for iCloud storage?  I know about auto-renewing subscriptions from the App Store, so that's different of course.