If you previously have used the method of appending .json to the end of a reddit url (e.g. https://reddit.com/r/shortcuts/comments/qu0js0/deeplink_into_a_personal_automation_to_enable/.json), then you might have noticed recently that on the mobile app, this no longer works.
Reddit now uses a share ID which includes the tracking. You can generate a link for a post/comment and the value changes each time.
This shortcut will take the new URL and convert it to the original style you’ll see when on desktop