Did you know that you can create a Google spreadsheet with all your rubric criteria and ratings, and simply import it when you want a new rubric?
Using spreadsheets also makes it easier to create new rubrics, using the original as a template.
A contributor named Alice Keeler has created clear instructions, as well as a template to get started.
https://alicekeeler.com/2020/07/31/add-a-rubric-to-google-classroom-with-google-sheets/