Remove a required activity from active course - without losing completion data

We're using Moodle 3.11 and we have a client that has numerous courses and a LOT of people have completed them. On each course they have a required Feedback form but they're a little different on each course, so they want to edit all the feedback forms to make them consistent on all courses (i.e. add, remove, reword, reorganize).

Is it possible to backup each existing course, remove the old feedback form, create a new one, and then restore it without losing any user completion data? From there hopefully I can duplicate the new feedback form and add it to the rest of the courses.

Or does anyone have any other suggestions?